Tistarite
| Tistarite | |
|---|---|
| General | |
| Category | Oxide minerals |
| Formula | Ti2O3 |
| IMA symbol | Tta[1] |
| Strunz classification | 4.CB.05 |
| Crystal system | Trigonal |
| Crystal class | Hexagonal scalenohedral (3m) H-M symbol: (3 2/m) |
| Space group | R3c |
| Identification | |
| References | [2] |
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Tistarite is an exceedingly rare mineral with the formula Ti2O3, thus being the natural analogue of titanium(III) oxide.[4][2] In terms of chemistry it is the titanium-analogue of hematite, corundum, eskolaite, and karelianite. Other minerals with the general formula A2O3 are arsenolite, avicennite, claudetite, bismite, bixbyite, kangite, sphaerobismoite, yttriaite-(Y) and valentinite. Tistarite and grossmanite – both found in the famous Allende meteorite (so is kangite) – are the only currently known minerals with trivalent titanium. Titanium in minerals is almost exclusively tetravalent.[2][5][6] The only known terrestrial occurrence of tistarite was found during minerals exploration by Shefa Yamim Ltd. in the upper mantle beneath Mount Carmel, Israel.[3][7]
References
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- ^ a b c Mindat, Tistarite, http://www.mindat.org/min-38695.html
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
This article incorporates text from this source, which is available under the CC BY 4.0 license.
- ^ Ma, C., and Rossmann, G.R., 2009: Tistarite, Ti2O3, a new refractory mineral from the Allende meteorite. American Mineralogist 94(5–6), 841–844
- ^ Mindat, Kangite, http://www.mindat.org/min-42879.html
- ^ Mindat, Yttriaite-(Y), http://www.mindat.org/min-40471.html
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).