Citizendia
Your Ad Here

The silicate minerals make up the largest and most important class of rock-forming minerals. A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition a highly ordered atomic structure and specific They are classified based on the structure of their silicate ion group. An ion is an Atom or Molecule which has lost or gained one or more Valence electrons giving it a positive or negative electrical charge Silicate minerals all contain silicon and oxygen.

Contents

Subclasses:

Nesosilicates or Isosilicates

Nesosilicates (or orthosilicates) have isolated [SiO4]4−

Kyanite crystals (unknown scale)
Kyanite crystals (unknown scale)

tetrahedra that are connected only by interstitial cations. Kyanite, whose name derives from the Greek word kyanos, meaning blue is a typically blue Silicate Mineral, commonly found in Aluminium -rich A tetrahedron (plural tetrahedra) is a Polyhedron composed of four triangular faces three of which meet at each vertex.

Sorosilicates

Sorosilicates have isolated double tetrahedra groups with (Si2O7)6− or a ratio of 2:7. Topaz is a Silicate mineral of Aluminium and Fluorine with the Chemical formula Al 2 Si[[oxygen O]]4( Staurolite is a red brown to black mostly opaque nesosilicate Mineral with a white streak Humite is an Orthorhombic mineral of a transparent vitreous brown to orange color Chondrodite is a nesosilicate mineral with formula (MgFe5(FOH2(SiO42 Humite is an Orthorhombic mineral of a transparent vitreous brown to orange color Clinohumite is an uncommon member of the Humite group of Minerals a Magnesium Silicate according to the Chemical formula ( Datolite is a Calcium Boron Hydroxide nesosilicate, Ca[[boron B]] Si[[oxygen O]]4(O H) Titanite or sphene is a Calcium Titanium nesosilicate Mineral, Ca[[titanium Ti]] Si[[oxygen O]]5 Chloritoid is a silicate mineral of metamorphic origin It is an Iron Magnesium Manganese

Cyclosilicates

Cyclosilicates, ring silicates, have linked tetrahedra with (SixO3x)2x- or a ratio of 1:3. Hemimorphite, is a sorosilicate Mineral which has been mined from days of old from the upper parts of Zinc and Lead Ores chiefly This article is about calamine in mineralogy For calamine used in calamine lotion see Calamine, for other uses of the word see Calamine (disambiguation. Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl2Si2O7(OH2·H2O Ilvaite is a sorosilicate of Iron and Calcium with formula CaFe2+2Fe3+Si2O7O(OH Epidote is a Calcium Aluminium Iron sorosilicate Mineral, Ca2Al2(Fe3+Al(SiO4(Si2O7O(OH This article is about the mineral named zoisite For the Sailor Moon character see Shitennou. Clinozoisite is a mineral a complex Sorosilicate of Calcium and Aluminium and is usually a grey green colour Tanzanite is the blue/purple variety of the Mineral Zoisite which was discovered in the Meralani (Merelani Hills of Northern Tanzania in 1967 near Allanite is a sorosilicate group of minerals within the broader Epidote group that contain a significant amount of Rare earth elements It has the general Vesuvianite, also known as idocrase is a green brown yellow or blue silicate mineral. Vesuvianite, also known as idocrase is a green brown yellow or blue silicate mineral. These exists as 3-member (Si3O9)6-, 4-member (Si4O12)8- and 6-member (Si6O18)12- rings.

Inosilicates

Inosilicates, chain silicates, have interlocking chains of silicate tetrahedra with either SiO3, 1:3 ratio, for single chains or Si4O11, 4:11 ratio, for double chains. Benitoite is a rare blue silicate mineral, found in Hydrothermally altered Serpentinite. Axinite is a brown to violet-brown or reddish-brown bladed Mineral composed of Calcium Aluminium boro - silicate, (CaFeMn3Al2BO3Si4O12OH The Mineral beryl is a Beryllium Aluminium cyclosilicate with the Chemical formula Be3Al2(SiO36 Emeralds are a variety of the Mineral Beryl (Be3Al2(SiO36 colored Green by trace amounts Cordierite ( Mineralogy) or iolite ( Gemology) is a Magnesium Iron Aluminium cyclosilicate. Tourmaline is a Crystal Silicate mineral compounded with elements such as Aluminium, Iron, Magnesium, Sodium, Lithium

Single chain inosilicates

Double chain inosilicates

Phyllosilicates

Phyllosilicates, sheet silicates (from Greek φύλλον phyllon, leaf), form parallel sheets of silicate tetrahedra with Si2O5 or a 2:5 ratio. Diopside is a Monoclinic Pyroxene Mineral with composition MgCaSi2O6 Hedenbergite, Ca[[iron Fe]] Si 2 0 6 is the Iron rich end member of the Pyroxene group having a Monoclinic Augite is a single chain inosilicate Mineral described chemically as (CaMgFeSiO3 or Calcium Magnesium Iron Jadeite is a Pyroxene mineral with composition Na[[aluminum Al]] Si 2 O 6 Aegirine is an inosilicate member of the clino Pyroxene group Aegirine is an inosilicate member of the clino Pyroxene group "Kunzite" redirects here For the Sailor Moon character see Shitennou. Rhodonite is a Manganese inosilicate, (MnFeMgCaSiO3 and member of the Pyroxene group of Minerals crystallizing in the Pectolite is a white to gray mineral Na[[calcium Ca]]2 Si 3 O 8(O H) Sodium Calcium inosilicate Amphibole (pronounced amfi-bowl defines an important group of generally dark-colored rock-forming inosilicate Minerals composed of double chain SiO4 Anthophyllite is an Amphibole Mineral: (Mg Fe7Si8O22(OH2 Magnesium Iron inosilicate Cummingtonite or magnesium iron silicate hydroxide is a metamorphic Amphibole with the Chemical composition ( Mg, Fe)7 Grunerite is a mineral of the Amphibole group of minerals with formula Fe 7 Si 8 O 22( OH)2 Tremolite is a member of the Amphibole group of Silicate minerals with composition Ca 2 Mg 5 Si 8 For the community in Canada see Actinolite Ontario. For the Sailor Moon character Hornblende is a complex inosilicate series of Minerals Hornblende is not a recognized mineral in its own right but the name is used as a general or field term to Glaucophane is a Mineral belonging to the Amphibole group chemical formula Na 2( Mg, Fe)3 Al 2 Riebeckite is a Sodium -rich member of the Amphibole group of Minerals chemical formula Na 2( Fe, Mg)5 Asbestos is a group of Minerals with long thin fibrous Crystals The word "asbestos" (῾ἀσβεστος is derived from a Greek adjective Arfvedsonite is a Sodium Amphibole Mineral with composition Na3(FeMg4FeSi8O22(OH2 sodium Greek (el ελληνική γλώσσα or simply el ελληνικά — "Hellenic" is an Indo-European language, spoken today by 15-22 million people mainly

Kaolin.
Kaolin.

Tectosilicates

Tectosilicates, or "framework silicates", have a three-dimensional framework of silicate tetrahedra with SiO2 or a 1:2 ratio. Vermiculite is a natural Mineral that expands with the application of Heat. Talc (derived from the Persian via Arabic talq) is a Mineral composed of Hydrated Magnesium Silicate with Pyrophyllite is a phyllosilicate Mineral species belonging to the Clay family and composed of Aluminium Silicate Hydroxide The word "mica" is thought to be derived from the Latin word la micare, "glitteren" in reference to the brilliant appearance of this mineral (especially Biotite is a common phyllosilicate Mineral within the Mica group with the approximate chemical formula K(Mg Fe3AlSi3O10(F Muscovite (also known as Common Mica, Isinglass, or Potash mica) is a phyllosilicate Mineral of Aluminium Phlogopite is a yellow greenish or reddish-brown member of the Mica family of phyllosilicates. Lepidolite (KLi2Al(AlSi3O10(FOH2 is a lilac or rose-violet colored phyllosilicate Mineral of the Mica group Margarite is a calcium rich member of the Mica group of the phyllosilicates with formula Ca[[aluminum Al]]2(Al2 Si 2 Glauconite is a phyllosilicate ( Mica group Mineral. It can also be referred to as an iron silicate The chlorites are a group of phyllosilicate Minerals Chlorites can be described by the following four endmembers based on their chemistry via substitution This discusses some chlorine compounds Chlorite is also a type of mineral see Chlorite group. This group comprises nearly 75% of the crust of the Earth. In Geology, a crust is the outermost solid shell of a planet or moon EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001 Tectosilicates with the exception of the quartz group are aluminosilicates. Aluminosilicate Minerals are minerals composed of Aluminium, Silicon, and oxygen

Quartz
Quartz
Lunar Ferroan Anorthosite #60025 (Plagioclase Feldspar). Collected by Apollo 16 from the Lunar Highlands near Descartes Crater.
Lunar Ferroan Anorthosite #60025 (Plagioclase Feldspar). Quartz (from German) is the most abundant Mineral in the Earth 's Continental crust (although Feldspar is more common in Anorthosite (æˈnɔrθəsaɪt/ /ə- is a Phaneritic, Intrusive Igneous rock characterized by a predominance of Plagioclase Feldspar Plagioclase is a very important series of tectosilicate Minerals within the Feldspar family Collected by Apollo 16 from the Lunar Highlands near Descartes Crater. The geology of the Moon (sometimes called selenology, although the latter term can refer more generally to "lunar Descartes is a heavily-worn lunar crater that is located in the rugged south-central highlands of the Moon.

References

External links

© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
 Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic