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The Silicates Class of Minerals

This classes basic structure is made up of oxygen and silicon, two of the most abundant elements in the earth's crust. The Class represents about 30% of all the known minerals and some geologists estimate that 90% of the Earth's crust is made up of silicates. The silicates are some of the most difficult minerals to distinguish. Silicates are not easily soluble in acid and many leave a skeletal silica outline of the grain when the compound is dissolved in a salt of phosphorus bead. Some are very hard and are infusible and insoluble. Their specific gravity ranges from fairly light to intermediate; they are never very heavy. Their luster is commonly glassy; most crush to a light powder even though the specimen is black. Their occurrence is chiefly as components of rocks, as segregation's in rocks, or as crystals lining cavities in rocks. The greater number of the hard silicates are primary minerals, not products of weathering. Secondary silicates usually contain water and most of these will form a gel in a small quantity of hydrochloric acid, particularly after the blowpipe fusion that occurs when heating hydrous silicates. The basic chemical unit of silicates is the (SiO4) tetrahedron shaped anionic group. The chemistry is such that the oxygen molecules have the option of bonding to another silicon ion and therefore linking one (SiO4) tetrahedron to another and another, etc. The silicates can form as single units, double units, chains, sheets, rings and framework structures. The different ways that the silicate tetrahedrons combine is what makes the Silicate Class the largest and most interesting class.

The Silicates are divided into the following subclasses, by their structures: Click on a subclass name to go to it in this page.
Nesosilicates (single tetrahedrons)
Sorosilicates (double tetrahedrons)
Inosilicates (single and double chains)
Cyclosilicates (rings)
Phyllosilicates (sheets)
Tectosilicates (frameworks)

The Nesosilicate Subclass:
The Nesosilicates are the simplest of all the silicate subclasses and are sometimes referred to as orthosilicates, This subclass includes all silicates where the (SiO4) tetrahedrons are unbonded to other tetrahedrons. This makes them similar to other mineral classes such as the sulfates and phosphates. These other classes also have tetrahedral basic ionic units (PO4 & SO4). There are minerals as well as groups in these classes that are similar to the members of the Nesosilicates. The structure of Nesosilicates produces stronger bonds and a closer packing of ions. This gives them more hardness along with higher densities and refractive indexes, than some of the other chemically similar silicates in other subclasses. Consequently, There are more gemstones in the Nesosilicates than in any other silicate subclass.

Afwillite (Calcium Silicate Hydroxide)
Andalusite (Aluminum Silicate)
Beryllite (Hydrated Beyllium Silicate Hydroxide)
Bredigite (Calcium Magnesium Silicate)
Britholite (Cerium Yttrium Calcium Silicate Phosphate Hydroxide Fluoride)
Bultfonteinite (Calcium Silicate Hydroxide Fluoride)
Cappelenite-(Y) (Barium Yttrium Cerium Boro-Silicate Fluoride)
Cerite-(Ce) (Cerium Iron Silicate Hydroxide)
Chlorellestadite (Calcium Silicate Phosphate Sulfate Chloride Fluoride)
Chloritoid (Iron Magnesium Manganese Aluminum Silicate Hydroxide)
The Datolite Group:
..................Bakerite (Hydrated Calcium Boro-Silicate Hydroxide)
..................Datolite (Calcium Boro-Silicate Hydroxide)
..................Gadolinite (Cerium Yttrium Lanthanum Neodymium Iron Beryllium Silicate Oxide)
..................Hingganite (Cerium Yttrium Ytterbium Erbium Beryllium Silicate Hydroxide)
..................Minasgeraisite (Calcium Yttrium Beryllium Silicate Oxide)
..................Yttrocerberysilite (Yttrium Beryllium Boro-Silicate Hydroxide)
Dumortierite (Aluminum Boro-Silicate Oxide Hydroxide)
Ellenbergerite (Magnesium Titanium Aluminum Silicate Hydroxide)
Ellestadite (Calcium Silicate Phosphate Sulfate Fluoride Hydroxide Chloride)
The Euclase Group:
......................Clinohedrite (Hydrated Calcium Zinc Silicate)
......................Euclase (Beryllium Aluminum Silicate Hydroxide)
......................Gerstmannite (Magnesium Manganese Zinc Silicate Hydroxide)
......................Hodgkinsonite (Manganese Zinc Silicate Hydroxide)
Eulytite (Bismuth Silicate)
Fluorbritholite-(Ce) (Cerium Lanthanum Sodium Calcium Silicate Phosphate Fluoride)
Fluorellestadite (Calcium Silicate Phosphate Sulfate Fluoride Hydroxide Chloride)
The Garnet Group:
....................Almandine (Iron Aluminum Silicate)
....................Andradite (Calcium Iron Silicate)
....................Grossular (Calcium Aluminum Silicate)
....................Pyrope (Magnesium Aluminum Silicate)
....................Spessartine (Manganese Aluminum Silicate)
....................Uvarovite (Calcium Chromium Silicate)
Garrelsite-VIII (Barium Sodium Boro-Silicate Hydroxide)
Glaucochroite (Calcium Manganese Silicate)
Haiweeite (Hydrated Calcium Uranyl Silicate)
Hatrurite (Calcium Silicate)
Hellandite-(Y) (Calcium Yttrium Aluminum Iron Boro-Silicate Hydroxide)
Henritermierite (Calcium Manganese Aluminum Silicate Hydroxide)
Holtite (Aluminum Tantalum Antimony Boro-Silicate Oxide Hydroxide)
Howlite (Calcium Boro-Silicate Hydroxide)
The Humite Group:
......................Alleghanyite (Manganese Silicate Hydroxide)
......................Chondrodite (Magnesium Iron Silicate Fluoride Hydroxide)
......................Clinohumite (Magnesium Iron Silicate Fluoride Hydroxide)
......................Humite (Magnesium Iron Silicate Fluoride Hydroxide)
......................Jerrygibbsite (Manganese Silicate Hydroxide)
......................Leucophoenicite (Manganese Silicate Hydroxide)
......................Manganhumite (Manganese Magnesium Silicate Hydroxide)
......................Reinhardbraunsite (Calcium Silicate Fluoride Hydroxide)
......................Ribbeite (Magnesium Iron Silicate Fluoride Hydroxide)
......................Sonolite (Manganese Silicate Hydroxide Fluoride)
Huttonite (Thorium Silicate)
Hydroxylellestadite (Calcium Silicate Sulfate Hydroxide Fluoride Chloride)
Jasmundite (Calcium Silicate Oxide Sulfide)
Kanonaite (Manganese Aluminum Silicate)
Karnasurtite (Hydrated Cerium Lanthanum Thorium Titanium Niobium Aluminum Silicate Phosphate Hydroxide)
Kirschstenite (Calcium Iron Silicate)
Kornerupine (Magnesium Aluminium Iron Boro-silicate Hydroxide)
Kyanite (Aluminum Silicate)
Larnite (Calcium Silicate)
Liberite (Lithium Beryllium Silicate)
Limoriite (Yttrium Silicate Carbonate)
Magnesiochloritoid (Magnesium Aluminum Silicate Hydroxide)
Malayaite (Calcium Tin Silicate)
Mattheddleite (Lead Silicate Sulfate Oxide Chloride)
Melanocerite (Hydrated Cerium Calcium Boro-Silicate Hydroxide Fluoride)
Merwinite (Calcium Magnesium Silicate)
Monticellite (Calcium Magnesium Silicate)
Mullite (Aluminum Silicate)
Nagelschmidtite (Calcium Silicate Phosphate)
Norbergite (Magnesium Silicate Fluoride Hydroxide)
Okanoganite-(Y) (Sodium Calcium Yttrium Cerium Boro-Silicate Fluoride)
The Olivine Group:
.....................Fayalite (Iron Silicate)
.....................Fosterite (Magnesium Silicate)
.....................Laihunite (Iron Silicate)
.....................Liebenbergite (Nickel Magnesium Silicate)
.....................Olivine (Magnesium Iron Silicate )
.....................Tephroite (Manganese Silicate)
Ottrelite (Manganese Iron Magnesium Aluminum Silicate Hydroxide)
Natisite (Sodium Titanate Silicate)
Paranatisite (Sodium Titanate Silicate)
The Phenakite Group:
.........................Eucryptite (Lithium Aluminum Silicate)
.........................Phenakite (Berylium Silicate )
.........................Willemite (Zinc Silicate)
Ringwoodite (Magnesium Iron Silicate)
Saryarkite (Hydrated Calcium Yttrium Thorium Aluminum Silicate Phosphate Sulfate Hydroxide) Sillimanite (Aluminum Silicate)
Sitinakite (Hydrated Sodium Potassium Titanium Niobium Silicate Oxide Hydroxide)
Soddyite (Hydrated Uranyl Silicate)
Sphene or Titanite (Calcium Titanium Silicate)
Spurrite (Calcium Silicate Carbonate)
Staurolite (Iron Magnesium Zinc Aluminum Silicate Hydroxide)
Stillwellite (Cerium Lanthanum Calcium Boro-Silicate)
Sverigeite (Sodium Manganese Magnesium Tin Beryllium Silicate Hydroxide)
Tadzhikite (Calcium Cerium Yttrium Titanium Aluminum Iron Boro-Silicate)
Tombarthite (Yttrium Silicate Hydroxide)
Topaz (Aluminum Silicate Fluoride Hydroxide)
Tornebohmite (Cerium Lanthanum Aluminum Silicate Hydroxide)
The Trimerite Group:
.......................Esperite (Lead Calcium Zinc Silicate)
.......................Larsenite (Lead Zinc Silicate)
.......................Trimerite (Calcium Manganese Beryllium Silicate)
Trimounsite-(Y) (Yttrium Dysprosium Erbium Ytterbium Gadolinium Holmium Terbium Samarium Titanium Silicate)
Tritomite (Cerium Yttrium Lanthanum Calcium Thorium Iron Aluminum Boro-Silicate Hydroxide Fluoride)
The Uranophane Group:
............................Boltwoodite (Hydrated Potassium Uranyl Silicate)
............................Cuprosklodowskite (Hydrated Copper Uranyl Silicate)
............................Kasolite (Hydrated Lead Uranyl Silicate)
............................Oursinite (Hydrated Cobalt Magnesium Uranyl Silicate)
............................Sklodowskite (Hydrated Magnesium Uranyl Silicate)
............................Sodiumboltwoodite (Hydrated Sodium Potassium Uranyl Silicate)
............................Uranophane (Hydrated Calcium Uranyl Silicate)
Uranosilite (Uranium Uranyl Silicate)
Vanadomalayaite (Calcium Vanadium Silicate)
Vicanite-(Ce) (Calcium Cerium Lanthanum Thorium Arsenic Sodium Iron Boro-Silicate Fluoride) Wadalite (Calcium Aluminum Magnesium Iron Silicate Chloride)
Wadsleyite (Magnesium Iron Silicate)
Weeksite (Hydrated Potassium Uranyl Silicate)
Yftisite (Yttrium Dysprosium Erbium Titanium Tin Silicate Oxide Fluoride Hydroxide)
Yoderite (Magnesium Aluminum Iron Silicate Oxide Hydroxide)
The Zircon Group:
...................Coffinite (Uranium Silicate Hydroxide)
...................Hafnon (Hafnium Silicate)
...................Thorite (Thorium Uranium Silicate)
...................Thorogummite (Thorium Uranium Silicate Hydroxide)
...................Zircon (Zirconium Silicate)
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The Sorosilicate Subclass:
The Sorosilicates subclass is the smallest of the silicate subclasses. There basic chemical unit has two silicate tetrahedrons that are linked by one oxygen ion (Si2O7) with a negative six charge (-6) This structure forms an unusual hourglass like shape. Some of the more complex members of this this subclass may also contain normal silicate tetrahedrons as well as double tetrahedrons, that hold them together. Most members of this group are rare, but epidote is widespread in many metamorphic environments.

Akatoreite (Manganese Iron Aluminum Silicate Hydroxide)
Akermanite (Calcium Magnesium Silicate)
Aminoffite (Calcium Beryllium Silicate Hydroxide)
Andremeyerite (Barium Iron Manganese Magnesium Silicate)
Androsite-(La) (Manganese Calcium Lanthanum Cerium Neodymium Aluminum Silicate Oxide ..Hydroxide)
Ardennite (Manganese Calcium Magnesium Aluminum Iron Arsenic Vanadate Phosphate Silicate ..Hydroxide)
Bafertisite (Barium Iron Manganese Titanium Silicate Oxide Hydroxide)
Baghdadite (Hydrated Calcium Zirconium Titanium Silicate)
Barylite (Barium Beryllium Silicate)
Barysilite (Lead Manganese Silicate)
Barytolamprophyllite (Sodium Potassium Barium Calcium Strontium Titanium Iron Silicate Hydroxide) Belkovite (Barium Niobium Titanium Silicate Fluoride)
Bertrandite (Beryllium Silicate Hydroxide)
Bornemanite (Barium Sodium Titanium Niobium Silicate Phosphate Fluoride Oxide)
Burpalite (Sodium Calcium Zirconium Silicate)
Chevkinite-(Ce) (Cerium Lanthanum Calcium Sodium Thorium Iron Magnesium Titanium Silicate) Clinophosinaite (Sodium Calcium Phosphate Silicate)
Cuspidine (Calcium Silicate Fluoride Hydroxide)
Danburite (Calcium Boro-Silicate)
Davreuxite (Manganese Aluminum Silicate Hydroxide)
Delindeite (Sodium Potassium Barium Calcium Titanium Iron Aluminum Silicate Hydroxide) Edgarbaileyite (Mercury Silicate)
The Epidote group:
...............Allanite (Yttrium Cerium Calcium Aluminum Iron Silicate Hydroxide)
...............Clinozoisite (Calcium Aluminum Silicate Hydroxide)
...............Epidote (Calcium Iron Aluminum Silicate Hydroxide)
...............Hancockite (Lead Calcium Strontium Aluminum Iron Silicate Hydroxide)
...............Piemontite (Calcium Aluminum Manganese Iron Silicate Oxide Hydroxide)
...............Strontiopiemontite (Calcium Manganese Strontium Aluminum Iron Silicate Oxide Hydroxide)
...............Zoisite (Calcium Aluminum Silicate Hydroxide)
Epistolite (Hydrated Sodium Titanium Niobium Silicate)
Ericssonite (Barium Manganese Iron Silicate Hydroxide)
Fersmanite (Calcium Sodium Titanium Niobium Silicate Fluoride)
Fluorthalenite (Yttrium Silicate Fluoride)
Foshallasite (Hydrated Calcium Silicate)
Fresnoite (Barium Titanium Silicate)
Ganomalite (Lead Calcium Manganese Silicate)
Gehlenite (Calcium Aluminum Silicate)
Gittinsite (Calcium Zirconium Silicate)
Gotzenite (Calcium Sodium Titanium Aluminum Silicate Fluoride Hydroxide)
Gugiaite (Calcium Beryllium Silicate)
Hainite (Sodium Calcium Titanium Zirconium Manganese Iron Silicate Fluoride)
Hardystonite (Calcium Zinc Silicate)
Harstigite (Calcium Manganese Beryllium Silicate Hydroxide)
Hejtmanite (Barium Manganese Iron Titanium Silicate Hydroxide Fluoride)
Hemimorphite (Hydrated Zinc Silicate Hydroxide)
Hennomartinite (Hydrated Strontium Magnesium Silicate Hydroxide)
Hiortdahlite (Calcium Sodium Zirconium Titanium Yttrium Silicate Oxide Hydroxide Fluoride)
Ilvaite (Calcium Iron Silicate Hydroxide)
Innelite (Barium Potassium Sodium Calcium Titanium Silicate Sulfate Oxide)
Jaffeite (Calcium Silicate Hydroxide)
Janhaugite (Sodium Calcium Manganese Iron Titanium Zirconium Niobium Silicate Oxide Hydroxide ..Fluoride)
Jeffreyite (Calcium Sodium Beryllium Aluminum Silicate Hydroxide)
Jennite (Hydrated Calcium Silicate Hydroxide)
Junitoite (Hydrated Calcium Zinc Silicate)
Keiviite (Yttrium Ytterbium Silicate)
Kinoite (Calcium Copper Silicate Hydroxide)
Melanotekite (Lead Iron Silicate)
Kentrolite (Lead Manganese Silicate)
Kilchoanite (Calcium Silicate) Killalaite (Hydrated Calcium Silicate)
Komarovite (Hydrated Calcium Manganese Sodium Niobium Silicate Oxide Hydroxide Fluoride) Lamprophyllite (Sodium Strontium Barium Titanium Silicate Hydroxide Fluoride)
Lavenite (Hydrated Sodium Calcium Manganese Iron Zirconium Titanium Silicate Oxide Hydroxide ..Fluoride)
Lawsonite (Hydrated Calcium Aluminum Silicate Hydroxide)
Leucophanite (Sodium Calcium Beryllium Silicate Hydroxide Fluoride)
Lomonosovite (Sodium Manganese Titanium Silicate Phosphate Oxide)
Macfallite (Calcium Manganese Silicate Hydroxide)
Medaite (Manganese Calcium Vanadium Arsenic Silicate Hydroxide)
Melanotekite (Lead Iron Silicate) Melilite (Calcium Sodium Aluminum Magnesium Iron Silicate) Meliphanite (Calcium Sodium Beryllium Aluminum Silicate Hydroxide Fluoride)
Mongolite (Hydrated Calcium Niobium Silicate Hydroxide)
Murmanite (Hydrated Sodium Titanium Niobium Silicate)
Nacareniobsite (Niobium Sodium Calcium Cerium Lanthanum Praseodymium Neodymium Silicate ..Oxide Fluoride)
Nasonite (Lead Calcium Silicate Chloride)
Niocalite (Calcium Niobium Silicate Oxide Fluoride)
Noelbensonite (Hydrated Barium Manganese Silicate Hydroxide)
Orientite (Calcium Manganese Silicate Hydroxide)
Orthoericssonite (Barium Manganese Iron Silicate Hydroxide)
Perrierite (Cerium Calcium Lanthanum Neodymium Thorium Iron Magnesium Titanium Aluminum ..Zirconium Silicate)
Phosinaite-(Ce) (Sodium Calcium Cerium Silicate Phosphate)
Pumpellyite (Hydrated Calcium Iron Magnesium Aluminum Manganese Silicate Oxide Hydroxide) Queitite (Lead Zinc Silicate Sulfate)
Rankinite (Calcium Silicate)
Rinkite (Sodium Calcium Cerium Titanium Silicate Oxide Fluoride)
Rosenbuschite (Calcium Sodium Zirconium Titanium Silicate Fluoride)
Rosenhahnite (Calcium Silicate Hydroxide)
Rowlandite-(Y) (Yttrium Iron Silicate Fluoride)
Ruizite (Hydrated Calcium Manganese Silicate Hydroxide)
Rustumite (Calcium Silicate Chloride Hydroxide)
Samfowlerite (Calcium Manganese Zinc Beryllium Silicate Hydroxide Fluoride)
Seidozerite (Sodium Calcium Zirconium Titanium Manganese Silicate Oxide Fluoride)
Strontiochevkinite (Strontium Lanthanum Cerium Calcium Iron Titanium Zirconium Silicate)
Suolunite (Hydrated Calcium Silicate Hydroxide)
Sursassite (Manganese Aluminum Silicate Hydroxide)
Thalenite (Yttrium Silicate Hydroxide)
Thortveitite (Scandium Yttrium Silicate)
Tilleyite (Calcium Silicate Carbonate)
Tiragalloite (Manganese Arsenic Silicate Hydroxide)
Vesuvianite (Idocrase) (Calcium Magnesium Aluminum Silicate Hydroxide)
Vuonnemite (Sodium Niobium Titanium Silicate Phosphate Oxide Fluoride)
Werdingite (Magnesium Iron Aluminum Boron Silicate Oxide)
Wohlerite (Sodium Calcium Zirconium Niobium Silicate Oxide Hydroxide Fluoride)
Yoshimuraite (Barium Strontium Titanium Manganese Silicate Phosphate Sulfate Hydroxide Chloride) Yttrialite (Yttrium Thorium Silicate)
Zunyite (Aluminum Silicate Hydroxide Fluoride Chloride)
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The Inosilicate Subclass:
This subclass contains two groups, the single chain and double chain silicates. In the single chain group, the tetrahedrons share two oxygen ions with two other tetrahedrons and form a seemingly endless chain. In a simple chain structure the tetrahedrons alternate to the left and then to the right along the line formed by the linked oxygen ions. More complex chains may appear to spiral. In a cross section view the chain forms a trapezium and this shape produces the angles between the crystal faces and cleavage directions. In the double chain group, two single chains lie side by side so that all the right sided tetrahedrons of the left chain are linked by an oxygen to the left sided tetrahedrons of the right chain. The double chain looks like a chain of six sided rings. The cross section is similar in the double chains to that of the single chains except the trapezium is longer in the double chains. This difference makes a convenient way to distinguish double chain silicates from single chain silicates. A prismatic cleavage forms in the single chained silicates. The two directions of cleavage are at nearly right angles (close to 90 degrees) forming nearly square cross sections. In the double chain silicates the cleavage angle is close to 120 and 60 degrees forming rhombic cross sections.

Single Chain Inosilicates:
Alamosite (Lead Silicate)
Batisite (Barium Potassium Sodium Titanium Silicate)
Bustamite (Manganese Calcium Silicate)
Gageite (Manganese Magnesium Zinc Silicate Hydroxide)
Hillebrandite (Calcium Silicate Hydroxide)
Lorenzenite (Sodium Titanium Silicate)
Neptunite (Potassium Sodium Lithium Iron Manganese Titanium Silicate)
Okenite (Hydrated Calcium Silicate)
Pectolite (Sodium Calcium Silicate Hydroxide)
The Pyroxene Group:
.....Clinopyroxenes (monoclinic)
..........Aegirine (Sodium Iron Silicate)
..........Augite (Calcium Sodium Magnesium Iron Aluminum Silicate)
..........Clinoenstatite (Magnesium Silicate)
..........Diopside (Calcium Magnesium Silicate)
..........Esseneite (Calcium Iron Aluminum Silicate)
..........Hedenbergite (Calcium Iron Silicate)
..........Hypersthene (Magnesium Iron Silicate)
..........Jadeite (Sodium Aluminum Silicate)
..........Jervisite (Sodium Calcium Iron Scandium Magnesium Silicate)
..........Johannsenite(Calcium Manganese Silicate)
..........Kanoite (Manganese Magnesium Silicate)
..........Kosmochlor (Sodium Chromium Silicate)
..........Namansilite (Sodium Manganese Silicate)
..........Natalyite (Sodium Vanadium Chromium Silicate)
..........Omphacite (Calcium Sodium Magnesium Iron Aluminum Silicate)
..........Petedunnite (Calcium Zinc Manganese Iron Magnesium Silicate)
..........Pigeonite (Calcium Magnesium Iron Silicate)
..........Spodumene (Lithium Aluminum Silicate)
....Orthopyroxenes (Orthorhombic)
..........Donpeacorite (Manganese Magnesium Silicate)
..........Enstatite (Magnesium Silicate)
..........Ferrosilite (Iron Magnesium Silicate)
..........Nchwaningite (Hydrated Manganese Silicate)
Pyroxferroite (Iron Manganese Calcium Silicate)
Pyroxmangite (Manganese Silicate)
Rhodonite (Manganese Iron Magnesium Calcium Silicate)
Serandite (Sodium Manganese Calcium Silicate Hydroxide)
Shattuckite (Copper Silicate Hydroxide)
Wollastonite (Calcium Silicate)

Double Chain Inosilicates:
The Amphibole Group:
.....Cummingtonite Subgroup (Fe-Mg-Li Clinoamphiboles):
..........Clinoferroholmquistite (Lithium Iron Aluminum Silicate Hydroxide)
..........Clinoholmquistite (Lithium Magnesium Aluminum Silicate Hydroxide)
..........Cummingtonite (Iron Magnesium Silicate Hydroxide)
..........Dannemorite (Sodium Magnesium Aluminum Silicate Hydroxide)
..........Grunerite (Iron Silicate Hydroxide)
..........Holmquistite (Lithium Magnesium Aluminum Silicate Hydroxide)
..........Magnesiocummingtonite (Magnesium Iron Silicate Hydroxide)
..........Sodic-ferri-clinoferroholmquistite (Lithium Iron Magnesium Silicate Hydroxide)
..........Tirodite (Manganese Magnesium Silicate Hydroxide)
.....Anthophyllite Subgroup (Fe-Mg-Li Orthoamphiboles):
..........Anthophyllite (Magnesium Iron Silicate Hydroxide)
..........Ferro-anthophyllite (Iron Silicate Hydroxide)
..........Ferrogedrite (Iron Aluminum Silicate Hydroxide)
..........Ferroholmquistite (Lithium Iron Aluminum Silicate Hydroxide)
..........Gedrite (Magnesium Aluminum Silicate Hydroxide)
..........Protoferro-anthophyllite (Iron Manganese Magnesium Silicate Hydroxide)
..........Protomangano-ferro-anthophyllite (Manganese Iron Magnesium Silicate Hydroxide)
..........Sodicanthophyllite (Sodium Magnesium Silicate Hydroxide)
..........Sodic-ferro-anthophyllite (Sodium Iron Silicate Hydroxide)
..........Sodic-ferrogedrite (Sodium Iron Aluminum Silicate Hydroxide)
..........Sodicgedrite (Sodium Magnesium Aluminum Silicate Hydroxide)
.....Tremolite Subgroup (Ca Amphiboles):
..........Actinolite (Calcium Magnesium Iron Silicate Hydroxide)
..........Edenite (Sodium Calcium Magnesium Iron Aluminum Silicate Hydroxide)
..........Ferro-actinolite (Calcium Iron Silicate Hydroxide)
..........Ferro-edenite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Ferrohornblende (Calcium Iron Aluminum Silicate Hydroxide)
..........Ferrokaersutite (Sodium Calcium Iron Titanium Aluminum Silicate Hydroxide)
..........Ferropargasite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Ferrotschermakite (Calcium Iron Aluminum Silicate Hydroxide)
..........Fluorocannilloite (Calcium Magnesium Aluminum Silicate Fluoride)
..........Hastingsite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Hornblende (Calcium Sodium Magnesium Iron Aluminum Silicate Hydroxide)
..........Kaersutite (Sodium Calcium Magnesium Titanium Aluminum Silicate Hydroxide)
..........Magnesiohastingsite (Sodium Calcium Magnesium Iron Aluminum Silicate Hydroxide) ..........Magnesiohornblende (Calcium Magnesium Aluminum Iron Silicate Hydroxide)
..........Magnesiosadanagaite (Sodium Calcium Magnesium Aluminum Iron Silicate Hydroxide)
..........Pargasite (Sodium Calcium Magnesium Aluminum Silicate Hydroxide)
..........Potassic-magnesiosadanagaite (Potassium Sodium Calcium Magnesium Aluminum Iron Silicate ..........Hydroxide) Potassicpargasite (Potassium Sodium Calcium Magnesium Iron Aluminum Silicate ..........Hydroxide Fluoride) Potassicsadanagaite (Potassium Sodium Calcium Iron Aluminum Silicate ................Hydroxide)
..........Tremolite (Calcium Magnesium Iron Silicate Hydroxide)
..........Tschermakite (Calcium Magnesium Aluminum Iron Silicate Hydroxide)
.....Richterite Subgroup (Ca-Na Clinoamphiboles):
..........Barroisite (Calcium Sodium Magnesium Aluminum Iron Silicate Hydroxide)
..........Ferrobarroisite (Calcium Sodium Iron Aluminum Silicate Hydroxide)
..........Ferrorichterite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Ferrowinchite (Calcium Sodium Iron Aluminum Silicate Hydroxide)
..........Fluorrichterite (Sodium Calcium Magnesium Silicate Fluoride)
..........Katophorite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Magnesiokatophorite (Sodium Calcium Magnesium Aluminum Iron Silicate Hydroxide) ..........Magnesiotaramite (Sodium Calcium Magnesium Aluminum Iron Silicate Hydroxide)
..........Potassic-fluorrichterite (Potassium Sodium Calcium Magnesium Silicate Fluoride)
..........Richterite (Sodium Calcium Magnesium Silicate Hydroxide)
..........Taramite (Sodium Calcium Iron Aluminum Silicate Hydroxide)
..........Winchite (Calcium Sodium Magnesium Aluminum Iron Silicate Hydroxide)
Glaucophane Subgroup (Alkali Amphiboles):
..........Arfvedsonite (Sodium Iron Magnesium Silicate Hydroxide)
..........Eckermannite (Sodium Magnesium Aluminum Silicate Hydroxide)
..........Ferro-eckermannite (Sodium Iron Aluminum Silicate Hydroxide)
..........Ferroglaucophane (Sodium Iron Aluminum Silicate Hydroxide)
..........Fluoro-ferroleakeite (Sodium Iron Lithium Silicate Fluoride)
..........Glaucophane (Sodium Magnesium Aluminum Silicate Hydroxide)
..........Kornite (Sodium Potassium Magnesium Manganese Lithium Silicate Hydroxide)
..........Kozulite (Sodium Manganese Iron Aluminum Silicate Hydroxide)
..........Leakeite (Sodium Magnesium Iron Lithium Silicate Hydroxide)
..........Magnesio-arfvedsonite (Sodium Magnesium Iron Silicate Hydroxide)
..........Magnesioriebeckite (Sodium Magnesium Iron Silicate Hydroxide)
..........Nyboite (Sodium Magnesium Aluminum Silicate Hydroxide)
..........Riebeckite (Sodium Iron Silicate Hydroxide)
..........Ungarettiite (Sodium Manganese Silicate Oxide)
Astrophyllite (Potassium Iron Titanium Silicate Hydroxide)
Babingtonite (Calcium Iron Manganese Silicate Hydroxide)
Charoite (Hydrated Sodium Calcium Barium Strontium Silicate Hydroxide Fluoride)
Epididymite (Sodium Beryllium Silicate Hydroxide)
Eudidymite (Sodium Beryllium Silicate Hydroxide)
Inesite (Hydrated Calcium Manganese Silicate Hydroxide)
Kupletskite (Potassium Sodium Manganese Iron Titanium Niobium Silicate Hydroxide)
Plancheite (Hydrated Copper Silicate Hydroxide)
Yuksporite (Hydrated Potassium Barium Sodium Calcium Titanium Silicate Fluoride Hydroxide)
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Cyclosilicate Subclass:
These silicates form chains such as in the inosilicates except that the chains link back around on themselves to form rings. In the less complex cyclosilicates the symmetry of the rings usually translates directly to the symmetry of these minerals The rings can be made of the minimum three tetrahedrons forming triangular rings. Four tetrahedrons can form a rough square shape Six tetrahedons form hexagonal shapes There are even eight membered rings and more complicated ring structures. As in Tourmaline, it's six membered rings have alternating tetrahedrons pointing up then down producing a trigonal symmetry as opposed to Beryl's hexagonal symmetry. As you might imagine this subclass has a great number of crystal structures. There are several gemstone minerals represented in this subclass. Which tells us that the minerals in this subclass have a general high hardness, luster and durability.

Abenakiite-(Ce) (Sodium Cerium Silicate Phosphate Carbonate Sulfite)
Alluaivite (Hydrated Sodium Calcium Manganese Titanium Niobium Silicate Hydroxide Chloride)
Axinite (Calcium Magnesium Iron Manganese Aluminum Borosilicate Hydroxide)
Baotite (Hydrated Barium Titanium Niobium Silicate Chloride)
Baratovite (Potassium Lithium Calcium Titanium Zirconium Silicate Fluoride)
The Benitoite Group:
..........Bazirite (Barium Zirconim Silicate)
..........Bazzite (Berylium Scandium Aluminum Silicate)
..........Benitoite (Barium Titanium Silicate)
..........Pabstite (Barium Tin Titanium Silicate)
..........Wadeite (Barium Titanium Silicate)
Beryl Family: (Berylium Aluminum Silicate)
Byelorussite-(Ce) (Hydrated Sodium Barium Cesium Lanthanum Manganese Titanium Silicate Fluoride ...Hydroxide)
Calciohilairite (Hydrated Calcium Zirconium Silicate)
Calciumcatapleiite (Hydrated Calcium Zirconium Silicate)
Catapleiite (Hydrated Sodium Zirconium Silicate)
Combeite (Sodium Calcium Silicate)
Cordierite (Magnesium Aluminum Silicate)
Dioptase (Copper Silicate Hydroxide)
Eudialyte (Sodium Calcium Cesium Iron Manganese Zirconium Silicate Hydroxide Chloride)
Foitite (Sodium Iron Aluminum Titanium Silicate Borate Hydroxide)
Gaidonnayite (Hydrated Sodium Zirconium Silicate)
Georgechaoite (Hydrated Potassium Sodium Zirconium Silicate)
Hilairite (Hydrated Sodium Zirconium Silicate)
Imandrite (Sodium Calcium Iron Silicate)
Indialite (Magnesium Aluminum Silicate)
Iraqite-(La) (Potassium Lanthanum Cerium Thorium Caclium Sodium Aluminum Silicate)
Jaoquinite (Hydrated Barium Sodium Cesium Titanium Niobium Iron Silicate Hydroxide Fluoride) Jonesite (Hydrated Barium Potassium Sodium Titanium Aluminum Silicate)
Kainosite (HydratedCalcium Yttrium Cerium Silicate Carbonate)
Kazakovite (Sodium Manganese Titanium Silicate Hydroxide)
Koashvite (Hydrated Sodium Calcium Manganese Titanium Iron Silicate)
Komkovite (Hydrated Barium Zirconium Silicate)
Kostylevite (Hydrated Potassium Zirconium Silicate)
Labuntsovite (Hydrated Potassium Barium Sodium Titanium Niobium Aluminum Silicate Oxide ...Hydroxide)
Loudounite (Hydrated Sodium Calcium Zirconium Silicate)
Lourenswalsite (Potassium Barium Titanium Magnesium Calcium Iron Aluminum Silicate Hydroxide) Lovozerite (Sodium Calcium Zirconium Titanium Silicate Hydroxide)
Margarosanite (Lead Calcium Manganese Silicate)
Megacyclite (Hydrated Potassium Sodium Silicate Hydroxide)
The Milarite-Osumilite Group:
..........Armenite (Hydrated Barium Calcium Aluminum Silicate)
..........Berezanskite (Potassium Lithium Titanium Silicate)
..........Brannockite (Potassium Antimony Lithium Silicate)
..........Chayesite (Potassium Magnesium Iron Silicate)
..........Darapiosite (Potassium Sodium Lithium Manganese Zinc Zirconium Silicate)
..........Dusmatovite (Potassium Sodium Manganese Yttrium Zirconium Zinc Lithium Silicate)
..........Eifelite (Potassium Sodium Magnesium Silicate)
..........Merrihueite (Potassium Sodium Iron Magnesium Silicate)
..........Milarite (Hydrated Potassium Calcium Aluminum Beryllium Silicate)
..........Osumilite (Potassium Sodium Iron Magnesium Aluminum Silicate)
..........Poudretteite (Potassium Sodium Boron Silicate)
..........Roedderite (Sodium Potassium Magnesium Iron Silicate)
..........Sogdianite (Potassium Sodium Lithium Iron Aluminum Zirconium Silicate)
..........Sugilite (Potassium Sodium Lithium Iron Manganese Aluminum Silicate)
..........Yagiite (Sodium Potassium Magnesium Aluminum Silicate)
Muirite (Barium Calcium ManganeseTitanium Silicate Hydroxide Chloride Fluoride)
Nagashimalite (Barium Vanadium Titanium Iron Magnesium Boro-silicate Chloride Oxide Hydroxide) Nenadkevichite (Hydrated Sodium Calcium Potassium Niobium Titanium Silicate Oxide Hydroxide) Odintsovite (Potassium Sodium Calcium Titanium Beryllium Silicate)
Orthojaoquinite (Hydrated Barium Sodium Cesium Iron Titanium Silicate Oxide Hydroxide)
Papagoite (Calcium Copper Aluminum Silicate Hydroxide)
Paraumbite (Hydrated Potassium Zirconium Silicate Hydroxide)
Petarasite (Sodium Zirconium Silicate Chloride Hydroxide)
Roeblingite (Hydrated Lead Calcium Silicate Sulfate Hydroxide)
Rossmanite! (Lithium Aluminum Silicate Borate Hydroxide)
Sazykinaite-(Y) (Hydrated Sodium Yttrium Zirconium Silicate)
Scawtite (Hydrated Calcium Silicate Carbonate Hydroxide)
Sekaninaite (Iron Magnesium Aluminum Silicate)
Steacyite (Thorium Calcium Sodium Potassium Silicate)
Steenstrupine (Hydrated Sodium Cerium Manganese Iron Zirconium Thorium Silicate Phosphate) Strakhovite (Sodium Barium Manganese Silicate Hydroxide)
Strontiojaoquinite (Hydrated Strontium Barium Sodium Iron Titanium Silicate Oxide Hydroxide) Strontio-orthojaoquinite (Hydrated Strontium Barium Sodium Iron Titanium Silicate Oxide Hydroxide) Taramellite (Barium Iron Titanium Magnesium Boro-silicate Oxide Chloride)
Thorosteenstrupine (Hydrated Calcium Thorium Manganese Silicate)
Tienshanite (Barium Sodium Manganese Titanium Boro-silicate)
Tisinalite (Sodium Manganese Calcium Iron Titanium Silicate Hydroxide)
Titantaramellite (Barium Titanium Iron Magnesium Boro-silicate Oxide Chloride)
The Tourmaline Group:
..........Buergerite (Sodium Iron Aluminum Boro-silicate Oxide Fluoride)
..........Chromdravite (Sodium Magnesium Chromium Iron Boro-Silicate Hydroxide)
..........Dravite (Sodium Magnesium Aluminum Boro-Silicate Hydroxide)
..........Elbaite (Sodium Lithium Aluminum Boro-Silicate Hydroxide)
..........Feruvite (Calcium Sodium Iron Magnesium Titanium Aluminum Boro-Silicate Hydroxide)
..........Liddicoatite (Calcium Lithium Aluminum Boro-silicate Hydroxide Fluoride Oxide)
..........Olenite (Sodium Aluminum Boro-Silicate Oxide Hydroxide)
..........Povondraite (Sodium Potassium Iron Magnesium Aluminum Boro-Silicate Hydroxide)
..........Schorl (Sodium Iron Aluminum Boro-Silicate Hydroxide)
..........Uvite (Calcium Sodium Iron Magnesium Aluminum Boro-Silicate Hydroxide)
Traskite (Hydrated Barium Iron Titanium Silicate Hydroxide Chloride Fluoride)
Umbite (Hydrated Potassium Zirconium Silicate)
Walstromite (Barium Calcium Silicate)
Zirsinalite (Sodium Calcium Manganese Iron Zirconium Silicate)
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The Phyllosilicate Subclass:
In this subclass, rings of tetrahedrons are linked by shared oxygen ions to other rings in a two dimensional plane that produces a sheet-like structure. The symmetry of these minerals is controlled mainly by the symmetry of the rings. But they are usually altered to a lower symmetry by other ions and other layers. Typically crystal of this subclass are flat, platy, book like as in the mica group. Typically, the sheets are then connected to each other by layers of cations. These cation layers are weakly bonded and often have water molecules and other neutral atoms or molecules trapped between the sheets. This explains why this subclass produces very soft minerals such as talc. Some members of this subclass have the sheets rolled into tubes. These tubes look like fibers as in asbestos. Check the groups for more of the minerals in this subclass:

Allophane (Hydrated Aluminum Silicate)
Apophyllite (Hydrated Potassium Sodium Calcium Silicate Hydroxide Fluoride)
Bannisterite (Hydrated Potassium Calcium Manganese Iron Zinc Aluminum Silicate Hydroxide) Carletonite (Hydrated Potassium Sodium Calcium Silicate Carbonate Hydroxide Fluoride)
Cavansite (Hydrated Calcium Vanadate Silicate)
Chrysocolla (Hydrated Copper Aluminum Hydrogen Silicate Hydroxide)
The Clay Group:
.....The Chlorite Group:
..........Baileychlore (Zinc Iron Aluminum Magnesium Silicate Hydroxide)
..........Chamosite (Iron Magnesium Aluminum Silicate Hydroxide Oxide)
..........The generallized mineral Chlorite
..........Clinochlore (a chromium variety kaemmererite) (Iron Magnesium Aluminum Silicate Hydroxide) ..........Cookeite (Lithium Aluminum Silicate Hydroxide)
..........Nimite (Nickel Magnesium Iron Aluminum Silicate Hydroxide)
..........Pennantite (Manganese Aluminum Silicate Hydroxide)
..........Penninite (Iron Magnesium Aluminum Silicate Hydroxide)
..........Sudoite (Magnesium Aluminum Iron Silicate Hydroxide)
.....Glauconite (Potassium Sodium Iron Aluminum Magnesium Silicate Hydroxide)
.....Illite (Hydrated Potassium Aluminum Magnesium Iron Silicate Hydroxide)
.....Kaolinite (Aluminum Silicate Hydroxide)
.....Montmorillonite (Hydrated Sodium Calcium Aluminum Magnesium Silicate Hydroxide)
.....Palygorskite (Hydrated Magnesium Aluminum Silicate Hydroxide)
.....Pyrophyllite (Aluminum Silicate Hydroxide)
.....Sauconite (Hydrated Sodium Zinc Aluminum Silicate Hydroxide)
.....Talc (Magnesium Silicate Hydroxide)
.....Vermiculite (Hydrated Magnesium Iron Aluminum Silicate Hydroxide)
Delhayelite (Hydrated Sodium Potassium Calcium Aluminum Silicate Chloride Fluoride Sulfate)
Elpidite (Hydrated Sodium Zirconium Silicate)
Fedorite (Hydrated Potassium Sodium Calcium Silicate Hydroxide Fluoride)
Franklinfurnaceite (Calcium Iron Aluminum Manganese Zinc Silicate Hydroxide)
Franklinphilite (Hydrated Potassium Manganese Aluminum Silicate)
Gonyerite (Manganese Magnesium Iron Silicate Hydroxide)
Gyrolite (Hydrated Calcium Silicate Hydroxide)
Leucosphenite (Hydrated Barium Sodium Titanium Boro-silicate)
The Mica Group:
..........Biotite (Potassium Iron Magnesium Aluminum Silicate Hydroxide Fluoride)
..........Lepidolite (Potassium Lithium Aluminum Silicate Hydroxide Fluoride)
..........Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride)
..........Paragonite (Sodium Aluminum Silicate Hydroxide)
..........Phlogopite (Potassium Magnesium Aluminum Silicate Hydroxide Fluoride)
..........Zinnwaldite (Potassium Lithium Aluminum Silicate Hydroxide Fluoride)
Minehillite (Hydrated Potassium Sodium Calcium Zinc Aluminum Silicate Hydroxide)
Nordite (Cerium Lanthanum Strontium Calcium Sodium Manganese Zinc Magnesium Silicate) Pentagonite (Hydrated Calcium Vanadate Silicate)
Petalite (Lithium Aluminum Silicate)
Prehnite (Calcium Aluminum Silicate Hydroxide)
Rhodesite (Hydrated Calcium Sodium Potassium Silicate)
Sanbornite (Barium Silicate)
The Serpentine Group:
..........Antigorite (Magnesium Iron Silicate Hydroxide)
..........Clinochrysotile (Magnesium Silicate Hydroxide)
..........Lizardite (Magnesium Silicate Hydroxide)
..........Orthochrysotile (Magnesium Silicate Hydroxide)
..........Serpentine (Iron Magnesium Silicate Hydroxide)
Wickenburgite (Hydrated Lead Calcium Aluminum Silicate)
Zeophyllite (Hydrated Calcium Silicate Hydroxide Fluoride)
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The Tectosilicate Subclass:
This subclass is often called the "Framework Silicates" because its structure is composed of interconnected tetrahedrons going outward in all directions forming interesting structures. Perhaps looking somewhat like the framework of a building or other structure. In this subclass all the oxygen ions are shared with other tetrahedrons. In the near pure state of only silicon and oxygen the mineral is quartz (SiO2). However tectosilicates are not that simple. It turns out that the aluminum ion can easily substitute for the silicon ion in the tetrahedrons up to 50%, which is major basis for varying structures. While the tetrahedron is nearly the same with an aluminum at its center, the charge is now a negative five (-5) instead of the normal negative four (-4). Since the charge in a crystal must be balanced, additional cations are needed in the structure and this is the main reason for the great variations within this subclass.

Coombsite (Potassium Manganese Iron Magnesium Aluminum Silicate Hydroxide)
The Feldspar Group:
..........Albite (Sodium Aluminum Silicate)
..........Andesine (Sodium Calcium Aluminum Silicate)
..........Anorthite (Calcium Aluminum Silicate)
..........Bytownite (Calcium Sodium Aluminum Silicate)
..........Labradorite (Sodium Calcium Aluminum Silicate)
..........Microcline (Potassium Aluminum Silicate)
..........Oligoclase (Sodium Calcium Silicate)
..........Orthoclase (Potassium Aluminum Silicate)
..........Sanidine (Potassium Aluminum Silicate)
The Feldspathoid Group:
..........Cancrinite (Sodium Calcium Aluminum Silicate Carbonate)
..........Danalite (Iron Beryllium Silicate Sulfide)
..........Davyne (Sodium Potassium Calcium Aluminum Silicate Sulfate Chloride)
..........Helvite (Manganese Beryllium Silicate Sulfide)
..........Hydroxycancrinite (Hydrated Sodium Aluminum Silicate Hydroxide)
..........Leucite (Potassium Aluminum Silicate)
..........Nepheline (Sodium Potassium Aluminum Silicate)
The Sodalite Group:
..........Hauyne (Sodium Calcium Aluminum Silicate Sulfate)
..........Lazurite (Sodium Calcium Aluminum Silicate Sulfate Sulfide Chloride)
..........Nosean (Sodium Aluminum Silicate Sulfate)
..........Sodalite (Sodium Aluminum Silicate Chloride)
..........Tugtupite (Sodium Aluminum Beryllium Silicate Chloride)
Vishnevite (Hydrated Sodium Calcium Potassium Aluminum Silicate Sulfate Carbonate Chloride)
Leifite (Hydrated Sodium Beryllium Aluminum Silicate Hydroxide Fluoride)
Marialite (Sodium Aluminum Silicate Chloride)
Meionite (Calcium Aluminum Silicate Carbonate Sulfate)
Pitaglianoite (Hydrated Potassium Sodium Aluminum Silicate Sulfate)
The Quartz Group: (All Silicon Dioxide)
..........Coesite
..........Cristobalite
..........Beta Cristobalite
..........Quartz
..........Beta Quartz
..........Tridymite
..........Beta Tridymite
Sarcolite (Sodium Calcium Aluminum Silicate Fluoride)
Scapolite (Calcium Sodium Aluminum Silicate Chloride Carbonate Sulfate)
Silhydrite (Hydrated Silicate Dioxide)
Ussingite (Sodium Aluminum Silicate Hydroxide)
The Zeolite Group:
..... The Analcime Family:
..........Analcime (Hydrated Sodium Aluminum Silicate)
..........Pollucite (Hydrated Cesium Sodium Aluminum Silicate)
..........Wairakite (Hydrated Calcium Sodium Aluminum Silicate)
Bellbergite (Hydrated Potassium Barium Strontium Sodium Aluminum Silicate)
Bikitaite (Hydrated Lithium Aluminum Silicate)
Boggsite (Hydrated calcium Sodium Aluminum Silicate)
Brewsterite (Hydrated Strontium Barium Sodium Calcium Aluminum Silicate)
.....The Chabazite Family:
..........Chabazite (Hydrated Calcium Aluminum Silicate) Willhendersonite (Hydrated Potassium Calcium ..........Aluminum Silicate)
Cowlesite (Hydrated Calcium Aluminum Silicate)
Dachiardite (Hydrated calcium Sodium Potassium Aluminum Silicate)
Edingtonite (Hydrated Barium Calcium Aluminum Silicate)
Epistilbite (Hydrated Calcium Aluminum Silicate)
Erionite (Hydrated Sodium Potassium Calcium Aluminum Silicate)
Faujasite (Hydrated Sodium Calcium Magnesium Aluminum Silicate)
Ferrierite (Hydrated Sodium Potassium Magnesium Calcium Aluminum Silicate)
.....The Gismondine Family:
..........Amicite (Hydrated Potassium Sodium Aluminum Silicate)
..........Garronite (Hydrated Calcium Aluminum Silicate)
..........Gismondine (Hydrated Barium Calcium Aluminum Silicate)
..........Gobbinsite (Hydrated Sodium Potassium Calcium Aluminum Silicate)
Gmelinite (Hydrated Sodium Calcium Aluminum Silicate)
Gonnardite (Hydrated Sodium Calcium Aluminum Silicate)
Goosecreekite (Hydrated Calcium Aluminum Silicate)
..... The Harmotome Family:
..........Harmotome (Hydrated Barium Potassium Aluminum Silicate)
..........Phillipsite (Hydrated Potassium Sodium Calcium Aluminum Silicate)
..........Wellsite (Hydrated Barium Calcium Potassium Aluminum Silicate)
..... The Heulandite Family:
..........Clinoptilolite (Hydrated Sodium Potassium Calcium Aluminum Silicate)
..........Heulandite (Hydrated Sodium Calcium Aluminum Silicate)
Laumontite (Hydrated Calcium Aluminum Silicate)
Levyne (Hydrated Calcium Sodium Potassium Aluminum Silicate)
Mazzite (Hydrated Potassium Sodium Magnesium Calcium Aluminum Silicate)
Merlinoite (Hydrated Potassium Sodium Calcium Barium Aluminum Silicate)
Montesommaite (Hydrated Potassium Sodium Aluminum Silicate)
Mordenite (Hydrated Sodium Potassium Calcium Aluminum Silicate)
..... The Natrolite Family:
..........Mesolite (Hydrated Sodium Calcium Aluminum Silicate)
..........Natrolite (Hydrated Sodium Aluminum Silicate)
..........Scolecite (Hydrated Calcium Aluminum Silicate)
Offretite (Hydrated Calcium Potassium Magnesium Aluminum Silicate)
Paranatrolite (Hydrated Sodium Aluminum Silicate)
Paulingite (Hydrated Potassium Calcium Sodium Barium Aluminum Silicate)
Perlialite (Hydrated Potassium Sodium Calcium Strontium Aluminum Silicate)
.....The Stilbite Family:
..........Barrerite (Hydrated Sodium Potassium Calcium Aluminum Silicate)
..........Stilbite (Hydrated Sodium Calcium Aluminum Silicate)
..........Stellerite (Hydrated Calcium Aluminum Silicate)
Thomsonite (Hydrated Sodium Calcium Aluminum Silicate)
Tschernichite (Hydrated Calcium Aluminum Silicate)
Yugawaralite (Hydrated Calcium Aluminum Silicate)

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