Akimotoite
This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Mg,Fe2+)SiO3
May contain minor Al.
Colour:
colourless
Lustre:
Vitreous
Crystal System:
Trigonal
Member of:
Name:
Named after Syun-iti Akimoto (December 20, 1925, Tokyo - July 14, 2004), of the Institute of Geophysics and Solid State Physics, University of Tokyo, specialist in high-pressure research, especially on phase relationships in the system (Mg,Fe)2SiO4 at mantle conditions.
Polymorph of:
Ilmenite Group. A high-pressure phase and the Mg-analogue of hemleyite and the Si-analogue of geikielite.
Classification of Akimotoite
Approved
Approval Year:
1997
4/C.05-05
4.CB.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Pronounciation of Akimotoite
Pronounciation:
Play | Recorded by | Country |
---|---|---|
Jolyon & Katya Ralph | United Kingdom |
Physical Properties of Akimotoite
Chemical Properties of Akimotoite
Formula:
(Mg,Fe2+)SiO3
May contain minor Al.
May contain minor Al.
IMA Formula:
MgSiO3
Elements listed:
Crystallography of Akimotoite
Crystal System:
Trigonal
Type Occurrence of Akimotoite
Synonyms of Akimotoite
Other Language Names for Akimotoite
Relationship of Akimotoite to other Species
Member of:
Other Members of this group:
Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 | Trig. 3 : R3 |
Geikielite | MgTiO3 | Trig. 3 : R3 |
Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 | Trig. 3 : R3 |
Ilmenite | Fe2+TiO3 | Trig. 3 : R3 |
Pyrophanite | Mn2+TiO3 | Trig. 3 : R3 |
Unnamed (Fe-Cr Oxide) | FeCrO3 | Trig. 3 : R3 |
Related Minerals - Nickel-Strunz Grouping
4.CB.05 | Brizziite | NaSb5+O3 | Trig. 3 : R3 |
4.CB.05 | Corundum | Al2O3 | Trig. 3m (3 2/m) : R3c |
4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 | Trig. 3 : R3 |
4.CB.05 | Eskolaite | Cr2O3 | Trig. |
4.CB.05 | Geikielite | MgTiO3 | Trig. 3 : R3 |
4.CB.05 | Hematite | Fe2O3 | Trig. 3m (3 2/m) : R3c |
4.CB.05 | Ilmenite | Fe2+TiO3 | Trig. 3 : R3 |
4.CB.05 | Karelianite | V3+2O3 | Trig. |
4.CB.05 | Melanostibite | Mn2+(Sb5+,Fe3+)O3 | Trig. |
4.CB.05 | Pyrophanite | Mn2+TiO3 | Trig. 3 : R3 |
4.CB.05 | Unnamed (Auroantimonate) | AuSbO3 | |
4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) | |
4.CB.05 | Tistarite | Ti3+2O3 | Trig. 3m (3 2/m) : R3c |
4.CB.10 | Avicennite | Tl2O3 | Iso. m3 (2/m 3) : Ia3 |
4.CB.10 | Bixbyite | Mn3+2O3 | Iso. m3 (2/m 3) : Ia3 |
4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 | Orth. mmm (2/m 2/m 2/m) |
4.CB.15 | Pseudobrookite | Fe2TiO5 | Orth. mmm (2/m 2/m 2/m) |
4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 | Hex. 6mm : P63mc |
4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 | Hex. 6mm : P63mc |
4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 | Trig. 3m (3 2/m) : R3m |
4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 | Trig. 3m (3 2/m) : P3 1m |
4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 | Hex. 6mm : P63mc |
4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 | Trig. 3m (3 2/m) : R3m |
4.CB.25 | Pseudorutile | Fe2Ti3O9 | Hex. |
4.CB.25 | Kleberite | FeTi6O11(OH)5 | Mon. 2/m : P21/b |
4.CB.30 | Berdesinskiite | V3+2TiO5 | Mon. |
4.CB.30 | Oxyvanite | V3+2V4+O5 | Mon. 2/m : B2/b |
4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 | Mon. |
4.CB.35 | Schreyerite | V3+2Ti3O9 | Mon. |
4.CB.40 | Kamiokite | Fe2Mo3O8 | Hex. |
4.CB.40 | Nolanite | (V3+,Fe3+,Fe2+,Ti)10O14(OH)2 | Hex. |
4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 | Hex. 6 : P63 |
4.CB.40 | Iseite | Mn2Mo3O8 | Hex. 6mm : P63mc |
4.CB.40 | Majindeite | Mg2Mo3O8 | Hex. 6mm : P63mc |
4.CB.45 | Claudetite | As2O3 | Mon. 2/m |
4.CB.45 | Stibioclaudetite | AsSbO3 | Mon. 2/m : P21/m |
4.CB.50 | Arsenolite | As2O3 | Iso. m3m (4/m 3 2/m) : Fd3m |
4.CB.50 | Senarmontite | Sb2O3 | Iso. m3m (4/m 3 2/m) : Fd3m |
4.CB.55 | Valentinite | Sb2O3 | Orth. mmm (2/m 2/m 2/m) : Pccn |
4.CB.60 | Bismite | Bi2O3 | Mon. 2/m : P21/b |
4.CB.65 | Sphaerobismoite | Bi2O3 | Tet. |
4.CB.70 | Sillénite | Bi12SiO20 | Iso. 2 3 : I2 3 |
4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) | Mon. 2/m : P21/b |
4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 | Hex. |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Akimotoite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Tomioka, N. and Fujino, K. (1999) Akimotoite, (Mg,Fe)SiO3, a new silicate mineral of the ilmenite group in the Tenham chondrite. American Mineralogist: 84: 267-271.
Miyajima, N., El Goresy, A., Dupas-Bruzek, C., Seifert, F., Rubie, D.C., Chen, M., Xie, X. (2007): Ferric iron in Al-bearing akimotoite coexisting with iron-nickel metal in a shock-melt vein in an L-6 chondrite. American Mineralogist, 92, 1545-1549.
Internet Links for Akimotoite
mindat.org URL:
https://www.mindat.org/min-6794.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
Localities for Akimotoite
Locality List




All localities listed without proper references should be considered as questionable.
Antarctica | |
| YT Lin, Lu Feng, Sen Hu (2011) High Pressure Mineral Assemblages in the Lherzolitic Shergottite Grove Mountains (GRV) 020090. Japan Geooscience Union Meeting Makuhari, Chiba Japan. |
Lu Feng, Masaaki Miyahara, Toshiro Nagase, Eiji Ohtani, Sen Hu, Ahmed El Goresy, Yangting Lin (2011) Shock Conditions and Formation Mechanism of Akimotoite-Pyroxene Glass Assemblages in the Grove Mountains (GRV) 052082. Japan Geooscience Union Meeting Makuhari, Chiba Japan. | |
Australia (TL) | |
| American Mineralogist, Volume 84, pages 267–271, 1999; T. Ferroir, M. Miyahara, E. Ohtani, P.Beck, A. Simionovici P. Gillet and A. El Goresy 72nd Meeting of the Meteoritical Society: Abstracts Page A69 No. 5143; O. Tschauner et al. (2018) Structure analysis and conditions of formation of akimotoite in the Tenham chondrite: Meteoritics & Planetary Science 53 (1): 62-74. (Jan 2018). |
Canada | |
| Tomioka, N. & Miyahara, M. (2017) High-pressure minerals in shocked meteorites: Meteoritics & Planetary Science 52(9): 2017-2039. (Sept 2017). |
China | |
| Chen, M., & Xie, X. (2015). Shock-produced akimotoite in the Suizhou L6 chondrite. Science China Earth Sciences, 58(6), 876-880. |
| Zhang, A., et al (2006): Lunar and Planetary Science, 37, 1069; Miyajima, N., El Goresy, A., Dupas-Bruzek, C., Seifert, F., Rubie, D.C., Chen, M., Xie, X. (2007): Ferric iron in Al-bearing akimotoite coexisting with iron-nickel metal in a shock-melt vein in an L-6 chondrite. American Mineralogist, 92, 1545-1549. |
Morocco | |
| Baziotis, I. P., Liu, Y., DeCarli, P. S., Melosh, H. J., McSween, H. Y., Bodnar, R. J., & Taylor, L. A. (2013). The Tissint Martian meteorite as evidence for the largest impact excavation. Nature Communications, 4, 1404. |
Nigeria | |
| Zhidong Xie et al. , Lunar and Planetary Science XXXVI (2005), 1216.pdf |
USA | |
| Zhidong Xie et al. , Lunar and Planetary Science XXXVI (2005), 1216.pdf; Tomioka, N. & Miyahara, M. (2017) High-pressure minerals in shocked meteorites: Meteoritics & Planetary Science 52(9): 2017-2039. (Sept 2017). |