Akaogiite

Akaogiite
General
CategoryMineral
Formula
(repeating unit)		(TiO2)
IMA symbolAka

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]

  1. ^ 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.
  2. ^ a b Cite error: The named reference American Mineralogist was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Mindat Akaogiite was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Mindat TiO2 II was invoked but never defined (see the help page).