Articles about "silicates"
Benitoite
Mineralogists seek out this barium titanium silicate (BaTiSi3O9) because it's the simplest of the ring silicates, with its molecular ring being composed of ...
http://geology.about.com/library/bl/images/blbenitoite.htm
Olivine
Olivine is magnesium-iron silicate, (Mg,Fe)2SiO4, a common mineral in the basalt and ... It is found in all compositions between pure magnesium silicate ...
http://geology.about.com/library/bl/images/blolivine.htm
Zircon, Zirconia, Zirconium Minerals
Zircon—zirconium silicate or ZrSiO4—is a hard stone, ranking 7˝ on the Mohs scale, ... CZ is a manufactured oxide compound, ZrO2, not a silicate, ...
http://geology.about.com/od/minerals/a/aa050497zircs.htm
Glaucophane
Glaucophane is a member of the amphibole group of silicate minerals, many of which tend to form needlelike or fibrous crystals. In this hand specimen the ...
http://geology.about.com/library/bl/images/blglaucophane.htm
Mineral Picture Gallery
Benitoite—A striking blue, very rare and weird ring silicate. Chrysocolla—This bright green-blue mineral is a sure sign of copper ore. ...
http://geology.about.com/library/bl/images/blmineralindex.htm
Talc
This talc specimen comes from somewhere in New York, but talc is quarried throughout the eastern United States, wherever magnesian silicate rocks or ...
http://geology.about.com/library/bl/images/bltalc.htm
Topaz
Topaz, the standard mineral for hardness 8 in the Mohs scale of relative hardness, is the hardest silicate along with beryl. ...
http://geology.about.com/library/bl/images/bltopaz.htm
Axinite
Axinite has an odd atomic structure consisting of two silica dumbbells (Si2O7) bound by a boron oxide group; it was formerly thought to be a ring silicate ...
http://geology.about.com/library/bl/images/blaxinite.htm
Staurolite
Staurolite is a brown silicate mineral that forms under medium-grade conditions of metamorphism, as in mica schist. Its formula is (Fe,Mg)4Al17(Si ...
http://geology.about.com/library/bl/images/blstaurolite.htm
Chrysocolla
Chrysocolla is a hydroxylated copper silicate mineral that forms in the alteration zone around the edges of copper ore bodies. It almost always occurs in ...
http://geology.about.com/library/bl/images/blchrysocolla.htm
Results by Google Custom Search