Keatite
| Keatite | |
|---|---|
|
Crystal structure | |
| General | |
| Category | Silicate mineral |
| Formula (repeating unit) | SiO2 |
| Strunz classification | 4.DA.45 |
| Identification | |
| Crystal habit | Microscopic inclusions |
| Crystal system | Tetragonal |
Keatite is a silicate mineral with the chemical formula SiO2 (silicon dioxide) that was discovered in 2013. It is a tetragonal polymorph of silica first known as a synthetic phase.[1] It was reported as minute inclusions within clinopyroxene (diopside) crystals in an ultra high pressure garnet pyroxenite body. The host rock is part of the Kokchetav Massif in Kazakhstan.[2]
References
- ↑ Ralph, Jolyon, and Ida Ralph. "Keatite: Keatite Mineral Information and Data." MinDat. 2013. Aug. 2013 <http://www.mindat.org/min-2173.html>.
- ↑ Hill, Tina R., Hiromi Konishi, and Huifang Xu, Natural occurrence of keatite precipitates in UHP clinopyroxene from the Kokchetav Massif: A TEM investigation, American Mineralogist, Volume 98, pages 187–196, 2013 Abstract
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