Silicate minerals - Wikipedia, the free encyclopedia

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** Silicate minerals **

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Silicate minerals
Chrysocolla.jpgCopper silicate mineral chrysocolla
Category Mineral

"Orthosilicate" redirects here. For anion, see Orthosilicate (ion).

The *silicate minerals* are rock-forming minerals, constituting
approximately 90 percent of the crust of the Earth. They are classified
based on the structure of their silicate group which contain different
ratios of silicon and oxygen. They make up the largest and most important
class of rock-forming minerals.

*Contents*

· 1 Nesosilicates or orthosilicates
· 2 Sorosilicates
· 3 Cyclosilicates
· 4 Inosilicates

· 4.1 Single chain inosilicates
· 4.2 Double chain inosilicates

· 5 Phyllosilicates
· 6 Tectosilicates
· 7 Gallery
· 8 See also
· 9 Further references
· 10 External links

*Nesosilicates or orthosilicates[edit]*

Basic (ortho-)silicate anion structure
Nesosilicate specimens at the Museum of Geology in South Dakota
Main category: Nesosilicates

Nesosilicates (from Greek νησος /nēsos/, island), or
orthosilicates, have the orthosilicate ion, which constitute isolated
(insular) [SiO[4]]^4−tetrahedra that are connected only by
interstitial cations. Nickel-Strunz classification: 09.A

· Phenakite group

· Phenakite - Be[2]SiO[4]
· Willemite - Zn[2]SiO[4]

· Olivine group

· Forsterite - Mg[2]SiO[4]
· Fayalite - Fe[2]SiO[4]
· Tephroite - Mn[2]SiO[4]

· Garnet group

· Pyrope - Mg[3]Al[2](SiO[4])[3]
· Almandine - Fe[3]Al[2](SiO[4])[3]
· Spessartine - Mn[3]Al[2](SiO[4])[3]
· Grossular - Ca[3]Al[2](SiO[4])[3]
· Andradite - Ca[3]Fe[2](SiO[4])[3]
· Uvarovite - Ca[3]Cr[2](SiO[4])[3]
· Hydrogrossular - Ca[3]Al[2]Si[2]O[8](SiO[4])[3-m](OH)[4m]

· Zircon group

· Zircon - ZrSiO[4]
· Thorite - (Th,U)SiO[4]

Kyanite crystals (unknown scale)

· Al[2]SiO[5] group

· Andalusite - Al[2]SiO[5]
· Kyanite - Al[2]SiO[5]
· Sillimanite - Al[2]SiO[5]
· Dumortierite - Al[6.5-7]BO[3](SiO[4])[3](O,OH)[3]
· Topaz - Al[2]SiO[4](F,OH)[2]
· Staurolite - Fe[2]Al[9](SiO[4])[4](O,OH)[2]

· Humite group - (Mg,Fe)[7](SiO[4])[3](F,OH)[2]

· Norbergite - Mg[3](SiO[4])(F,OH)[2]
· Chondrodite -


Source: en.wikipedia.org/wiki/Silicate_minerals


how are a minerals and a silicate related

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