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Asimowite

A valid IMA mineral species
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09562670017272473165471.jpg
Asimowite, etc.

Suizhou meteorite, Xihe, Zengdu District, Suizhou, Hubei, China
09562670017272473165471.jpg
Asimowite, etc.

Suizhou meteorite, Xihe, Zengdu District, Suizhou, Hubei, China
09562670017272473165471.jpg
Asimowite, etc.

Suizhou meteorite, Xihe, Zengdu District, Suizhou, Hubei, China
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About AsimowiteHide

03522020017272473176738.jpg
Paul D. Asimow
Formula:
Fe2+4O(Si2O7)
Although this formula would be typically written as β-Fe2+2SiO4 to emphasize its polymorphic relationship to fayalite, asimowite, like Mg-dominant wadsleyite, is actually a sorosilicate and not a member of the olivine group.
Crystal System:
Orthorhombic
Name:
Named in honor of Paul D. Asimow (b. 1969), professor of Geology and Geochemistry at the California Institute of Technology, for "his research in igneous and computational petrology and mineral physics and for exploring the behavior of materials under shock conditions."
Polymorph of:
Ahrensite, Fayalite
Isostructural with:
Wadsleyite
The Fe2+ analogue of wadsleyite.


Unique IdentifiersHide

Mindat ID:
53233
Long-form identifier:
mindat:1:1:53233:8

IMA Classification of AsimowiteHide

Classification of AsimowiteHide

Strunz-mindat (2026):
9.BE.X

9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
AmwIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of AsimowiteHide

Mindat Formula:
Fe2+4O(Si2O7)

Although this formula would be typically written as β-Fe2+2SiO4 to emphasize its polymorphic relationship to fayalite, asimowite, like Mg-dominant wadsleyite, is actually a sorosilicate and not a member of the olivine group.
Element Weights:
Element% weight
Fe54.811 %
O31.406 %
Si13.783 %

Calculated from ideal end-member formula.
Elements listed:
Fe, O, Si - search for minerals with similar chemistry

Crystallography of AsimowiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Imma
Setting:
Imma
Cell Parameters:
a = 5.7485(4) Å, b = 11.5761(9) Å, c = 8.3630(7) Å
Ratio:
a:b:c = 0.497 : 1 : 0.722
Unit Cell V:
556.52 ų
Z:
8

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 2: Planetesimal differentiation and alteration4.566-4.550
6 : Secondary asteroid phases4.566-4.560

Type Occurrence of AsimowiteHide

Type Locality:
ⓘ Suizhou meteorite (Suizhou L6 chondrite), Xihe, Zengdu District, Suizhou, Hubei, China
Place of Conservation of Type Material:
Collections of the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, I-50121, Firenze, Italy, catalogue number 3238/I (holotype), and the Goethe University Frankfurt, Germany (cotype).
Associated Minerals at Type Locality:
Fayalite
Reference:
Bindi, L., Brenker, F.E., Nestola, F., Koch, T.E., Prior, D.J., Lilly, K., Krot, A.N., Bizzarro, M., Xie, X. (2019) Discovery of asimowite, the Fe-analog of wadsleyite, in shock-melted silicate droplets of the Suizhou L6 and the Quebrada Chimborazo 001 CB3.0 chondrites. American Mineralogist: 104(5): 775-778.

Synonyms of AsimowiteHide

Other Language Names for AsimowiteHide

Dutch:Asimowiet
French:Asimowite
German:Asimowit
Norwegian:Asimowitt

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Asimowite associated with FayaliteFe2+2(SiO4)
1 photo of Asimowite associated with Native IronFe

Related Minerals - Strunz-mindat GroupingHide

9.BE.ZinkgruvaniteBa4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2Tric. 1 : P1
9.BE.Calciomurmanite(Na,◻)2Ca(Ti,Mg,Nb)4[Si2O7]2O2(OH,O)2(H2O)4Tric. 1 : P1
9.BE.CámaraiteBa3Na(Fe2+,Mn)8Ti4(Si2O7)4O4(OH,F)7Tric. 1
9.BE.AlfredcaspariteSr2TiO(Si2O7)Tet. 4mm : P4bm
9.BE.Batievaite-(Y)Y2Ca2Ti(Si2O7)2(OH)2(H2O)4Tric. 1 : P1
9.BE.Nacareniobsite-(Y)Na3Ca3YNb(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.Alexkuznetsovite-(Ce)Ce2Mn(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.BobshannoniteNa2KBa(Mn,Na)8(Nb,Ti)4(Si2O7)4O4(OH)4(O,F)2Tric.
9.BE.ParalomonosoviteNa6◻4Ti4(Si2O7)2[PO3OH][PO2(OH)2]O2(OF)Tric. 1 : P1
9.BE.MadeiraiteNa2Ca2Fe2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.BortolaniteCa2(Ca1.5Zr0.5)Na(NaCa)Ti(Si2O7)2(OF)F2Tric. 1 : P1
9.BE.Longshoushanite-(Ce)Ce4MgAl2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.MoxuanxueiteNaCa6Zr(Si2O7)2OF3Tric. 1 : P1
9.BE.Delhuyarite-(Ce)Ce4Mg(Fe3+,W)3◻(Si2O7)2O6(OH)2Mon. 2/m : B2/m
9.BE.Christofschäferite-(Ce)Ce3CaMnTiFe3+Ti2(Si2O7)2O8 Mon. 2/m : P21/m
9.BE.Biraite-(La)La2Fe2+(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.PilanesbergiteNa2Ca2Fe2Ti2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.02WadsleyiteMg4O(Si2O7)Orth. mmm(2/m2/m2/m) : Imma
9.BE.02Ohtaniite Mg3(Si0.5◻0.5)Si2O8Orth. mmm(2/m2/m2/m) : Imma
9.BE.05LawsoniteCaAl2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05HennomartiniteSrMn3+2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05CortesognoiteCaV2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.05NoelbensoniteBaMn3+2(Si2O7)(OH)2 · H2OOrth. mm2
9.BE.05ItoigawaiteSrAl2(Si2O7)(OH)2 · H2OOrth. mmm(2/m2/m2/m) : Cmcm
9.BE.07IlvaiteCaFe3+Fe2+2(Si2O7)O(OH)Orth. mmm(2/m2/m2/m)
9.BE.07Amamoorite CaMn2+2Mn3+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.07ManganilvaiteCaFe2+Fe3+Mn2+(Si2O7)O(OH)Mon. 2/m : P21/b
9.BE.10SuoluniteCa2(H2Si2O7) · H2OOrth. mm2 : Fdd2
9.BE.12JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
9.BE.15FresnoiteBa2Ti(Si2O7)OTet. 4mm : P4bm
9.BE.17Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2Mon. 2/m : P21/m
9.BE.17BurpaliteNa2CaZr(Si2O7)F2Mon. 2/m : P21/b
9.BE.17Niocalite(Ca,Nb)4(Si2O7)(O,OH,F)2Mon. m
9.BE.17NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OFMon. 2/m : P21/b
9.BE.17HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3Tric. 1 : P1
9.BE.17LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2Mon. 2/m : P21/b
9.BE.17CuspidineCa8(Si2O7)2F4Mon. 2/m : P21/b
9.BE.17WöhleriteNa2Ca4ZrNb(Si2O7)2O3FMon. 2 : P21
9.BE.17BaghdaditeCa6Zr2(Si2O7)2O4Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.20Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3Mon. m : Bb
9.BE.20Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2Mon. 2/m : P21/b
9.BE.20Nacareniobsite-(Nd) Ca2(CaNd)Na3Nb(Si2O7)2(OF)F2Mon. 2/m : P21/b
9.BE.20Rinkite-(Y)Na2Ca4YTi(Si2O7)2OF3Mon. 2/m : P21/b
9.BE.20Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2Mon. 2/m : P21/b
9.BE.22Hainite-(Y)Na2Ca4(Y,REE)Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6Tric. 1 : P1
9.BE.22GötzeniteNaCa6Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22Fogoite-(Y)Na3Ca2Y2Ti(Si2O7)2OF3Tric. 1 : P1
9.BE.22KochiteNa3Ca2MnZrTi(Si2O7)2OF3Tric. 1 : P1
9.BE.23DovyreniteCa6Zr(Si2O7)2(OH)4Orth. mmm(2/m2/m2/m) : Pnnm
9.BE.25Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2Mon. 2/m
9.BE.25SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25Nabalamprophyllite(BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2Mon. 2/m : P2/m
9.BE.25SchülleriteBa2Na(Mn,Ca)(Fe3+,Mg,Fe2+)2Ti2(Si2O7)2(O,F)4Tric. 1 : P1
9.BE.25EricssoniteBaMn2+2Fe3+(Si2O7)O(OH)Mon. 2/m : B2/m
9.BE.25GrenmariteNa4MnZr3(Si2O7)2O2F2Mon. 2/m : P2/b
9.BE.25KazanskyiteBaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4Tric. 1 : P1
9.BE.25SaamiteBa◻Na3Ti2Nb(Si2O7)2O2(OH)F(H2O)2Tric. 1 : P1
9.BE.25EmmerichiteBa2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)Mon.
9.BE.25'Ericssonite-2O'BaMn2+2Fe3+(Si2O7)O(OH)Orth.
9.BE.25Fluorbarytolamprophyllite(Ba,Sr)2[(Na,Fe2+)3(Ti,Mg)F2][Ti2(Si2O7)2O2]Mon. 2/m : B2/m
9.BE.25FluorlamprophylliteNa3(SrNa)Ti3(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.25LileyiteBa2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2Mon. 2/m : B2/m
9.BE.27KolskyiteCaNa2Ti4(Si2O7)2O4(H2O)7Tric. 1 : P1
9.BE.27VigrishiniteNaZnTi4(Si2O7)2O3(OH)(H2O)4Tric. 1 : P1
9.BE.27SelivanovaiteNaFe3+Ti4(Si2O7)2O4(H2O)4Tric. 1 : P1
9.BE.27MurmaniteNa2Ti2(Si2O7)O2 · 2H2OTric. 1 : P1
9.BE.30Epistolite(Na◻)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4Tric. 1 : P1
9.BE.32LomonosoviteNa5Ti2(Si2O7)(PO4)O2Tric. 1 : P1
9.BE.35VuonnemiteNa11Ti4+Nb2(Si2O7)2(PO4)2O3(F,OH)Tric.
9.BE.37SoboleviteNa13Ca2Mn2Ti3(Si2O7)2(PO4)4O3F3Mon. m : Pb
9.BE.40Ferroinnelite Ba4Ti2Na(NaFe2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)]Tric. 1 : P1
9.BE.40PhosphoinneliteNa3Ba4Ti3(Si2O7)2(PO4,SO4)2O2FTric.
9.BE.40Innelite Ba4Ti2Na(NaMn2+)Ti(Si2O7)2[(SO4)(PO4)]O2[O(OH)]Tric. 1 : P1
9.BE.42YoshimuraiteBa2Mn2Ti(Si2O7)(PO4)O(OH)Tric. 1 : P1
9.BE.42HoriiteBa2Mn2Mn4Ti2(Si2O7)2(PO4)2O2(OH)2Tric. 1 : P1
9.BE.45QuadruphiteNa6Na2(CaNa)2Na2Ti2Na2Ti2(Si2O7)2(PO4)4O4F2Tric. 1 : P1
9.BE.47PolyphiteNa5(Na4Ca2)Ti2(Si2O7)(PO4)3O2F2Tric. 1 : P1
9.BE.50Shkatulkalite Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3Tric. 1 : P1
9.BE.50BornemaniteNa6BaTi2Nb(Si2O7)2(PO4)O2(OH)FTric. 1 : P1
9.BE.55HejtmaniteBa2Mn2+4Ti2(Si2O7)2O2(OH)2F2Tric. 1
9.BE.55Bykovaite(Ba,Na,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(H2O,F,OH)2 · 3.5H2OMon. 2/m
9.BE.55Nechelyustovite(Ba,Sr,K)2(Na,Ti,Mn)4(Ti,Nb)2(Si2O7)2O2(O,H2O,F)2 · 4.5H2OMon. 2/m : B2/m
9.BE.55BafertisiteBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2Tric.
9.BE.60Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2OMon. 2/m : B2/m
9.BE.62'Orthochevkinite'(Ce,La,Ca,Na,Th)4(Fe2+,Mg)2(Ti,Fe3+)3Si4O22Orth.
9.BE.62 va'Strontium Perrierite'(Ce,Sr,La,Ca)4Fe2+(Ti,Zr,Fe)2Ti2(Si2O7)2O8
9.BE.62'Chevkinite-(Nd)'(Nd,REE)4(Fe2+,Mg)(Fe2+,Ti,Fe3+)2(Ti,Fe3+)2(Si2O7)2O8 ?
9.BE.62'Perrierite-(Nd)'Nd4MgFe3+2Ti2(Si2O7)2O8 ?
9.BE.65BusseniteNa2Ba2Fe2+Ti(Si2O7)(CO3)(OH)3FTric. 1 : P1
9.BE.67JinshajiangiteBaNaFe2+4Ti2(Si2O7)2O2(OH)2FTric. 1 : P1
9.BE.67PerraultiteBaNaMn2+4Ti2(Si2O7)2O2(OH)2FTric. 1
9.BE.70Dingdaohengite-(Ce)(Ce,La)4Fe2+(Ti,Fe2+,Mg,Fe3+)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Perrierite-(Ce)Ce4MgFe3+2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Karnasurtite-(Ce)(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si2O7)(OH)4 · 3H2OAmor.
9.BE.70Maoniupingite-(Ce)(Ce,Ca)4(Fe3+,Ti,Fe2+,◻)(Ti,Fe3+,Fe2+,Nb)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70MatsubaraiteSr4Ti5(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70RengeiteSr4ZrTi4(Si2O7)2O8Mon. 2/m : P21/b
9.BE.70Polyakovite-(Ce)(Ce,Ca)4(Mg,Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70Hezuolinite(Sr,REE)4Zr(Ti,Fe3+)4(Si2O7)2O8Mon. 2/m : B2/m
9.BE.70'UM2008-53-SiO:SrTiZr'Sr4ZrTi4(Si2O7)2O8Orth. mmm(2/m2/m2/m) : Pbca
9.BE.70Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2Mon. 2/m : P21/b
9.BE.70Perrierite-(La)(La,Ce,Ca)4(Fe2+,Mn)(Ti,Fe3+,Al)4[(Si2O7)O4]2Mon. 2/m : P21/b
9.BE.70Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8Mon. 2/m : P21/b
9.BE.72FersmaniteCa4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3Tric.
9.BE.75BelkoviteBa3(Nb,Ti)6(Si2O7)2O12Hex. 6m2 : P62m
9.BE.77NasonitePb6Ca4(Si2O7)3Cl2Hex. 6/m : P63/m
9.BE.80MelanotekitePb2Fe3+2(Si2O7)O2Orth. 222 : C2221
9.BE.80KentrolitePb2Mn3+2(Si2O7)O2Orth. mmm(2/m2/m2/m) : Pbcm
9.BE.82Alexkuznetsovite-(La)La2Mn(CO3)(Si2O7)Mon. 2/m : P21/b
9.BE.82TilleyiteCa5(Si2O7)(CO3)2Mon. 2/m : P21/b
9.BE.85KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon. 2/m : P21/m
9.BE.87Stavelotite-(La)(La,Nd,Ca)3Mn2+3Cu(Mn3+,Fe3+,Mn4+)26(Si2O7)6O30Trig. 3 : P31
9.BE.90Magnesiorowlandite-(Y)Y4(Mg,Fe)(Si2O7)2F2Tric. 1 : P1
9.BE.90Biraite-(Ce)Ce2Fe2+(Si2O7)(CO3)Mon. 2/m : P21/b
9.BE.92Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m
9.BE.92Chirvinskyite(Na,Ca)13(Fe,Mn,◻)2(Ti,Zr)5(Si2O7)4(OH,O)12 · 2H2OTric. 1 : P1
9.BE.95RusinoviteCa10(Si2O7)3Cl2 Orth. mmm(2/m2/m2/m) : Cmcm
9.BE.95BatisiviteBaV3+8Ti6(Si2O7)O22Tric. 1 : P1
9.BE.97Schlüterite-(Y)(Y,REE)2AlSi2O7(OH)2FMon. 2/m : P21/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for AsimowiteHide

References for AsimowiteHide

Localities for AsimowiteHide

Showing 1 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
China (TL)
 
  • Hubei
    • Suizhou
      • Zengdu District
        • Xihe
Bindi et al. (2019) +2 other references
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