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Akaogiite
| Akaogiite | |
|---|---|
| General | |
| Category | Mineral |
| Formula (repeating unit) | (TiO2) |
| IMA symbol | Aka |
Akaogiite (IMA symbol Aka[1]) is an exceedingly rare mineral, one of the natural forms of titanium dioxide (TiO2). It is a high-pressure polymorph of TiO2, along with anatase, brookite and another high-pressure phase called "TiO2 II".[2][3][4] Rutile is the stable polymorph of TiO2, most commonly found at standard temperatures and pressures.
Akaogiite can be found at the Nördlinger Ries Crater, a meteor crater in Germany, where the extreme pressure during the impact allowed its formation.[2][3]
- ^ Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b Cite error: The named reference
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Mindat TiO2 IIwas invoked but never defined (see the help page).
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