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Akimotoite

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Akimotoite
Akimotoite is a rare silicate mineral ((Mg,Fe)SiO3) in the ilmenite group of minerals. It has a vitreous luster, is colorless, and has a white or colorless streak. It crystallizes in the trigonal crystal system in space group R. It is the silicon analogue of geikielite (MgTiO3).

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Mineralogy Database Dictionary

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Akimotoite

General Information:
 Chemical Formula:
(Mg,Fe)SiO3
 Composition:
(Molecular Weight = 108.27 gm)
Magnesium 16.84 % Mg
Iron 12.89 % Fe
Silicon 25.94 % Si
Oxygen 44.33 % 
 Empirical Formula:
Mg0.75Fe2+0.25SiO3
 Environment:
Found in fragments within veins of shock-induced melt. A member of the Ilmenite group. Dimorphic relationship with enstatite and clinoenstatite.
 IMA Status:
Proposed IMA 1998
 Locality:
Tenham chondritic meteorite, which fell in 1879 in South Gregory, Queensland, Australia.
 Name Origin:
Named after Syun-iti Akimoto (b. 1925), of the Institute of Geophysics and Solid State Physics, University of Tokyo, specialist in high-pressure research, especially on phase relati onships in the system (Mg,Fe)2 SiO4 at
Physical Properties:
 Color:
colorless.
 Diaphaniety:
Transparent
 Luster:
Vitreous (Glassy)
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