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]
American Mineralogist
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