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Yimengite

A valid IMA mineral species
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Named after its discovery locality, the Yimeng Mts (Yimeng Shan), Shandong Province, China.
Type Locality:
ⓘYimeng Mountains (Yimeng Shan), Linyi, Shandong, China
Does not belong to a subgroup of the magnetoplumbite group.

The Cr analogue ofUM1994-08-O:CaFeKMgTi.

Occurrence of a "yimengite isomorphous series" is suggested by Lu & Chou (1994).


Unique Identifiers
IMA Formula:
K[Ti3Cr5Fe3+2Mg2]O19
Approval year:
1982
Type description reference:
Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Yimengite, K(Cr, Ti,Fe,Mg)12O19, a new mineral from China. Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936

Classification of Yimengite
Dana 8th ed.:
7.4.1.2

7 : MULTIPLE OXIDES
4 : AB12X19
Hey's CIM Ref.:
7.14.5

7 : Oxides and Hydroxides
14 : Oxides of Cr

Mineral Symbols
Transparency:
Opaque
Colour:
Black
Streak:
Brown
Hardness:
4 onMohs scale
Hardness:
VHN20=273 kg/mm2 - Vickers
Cleavage:
Perfect
{0001}, perfect; {1121}, good; {1011}, poor.
Density:
4.34 g/cm3 (Measured)    4.35 g/cm3 (Calculated)

Optical Data of Yimengite
Colour in reflected light:
Gray to grayish white
Pleochroism:
Weak

Chemistry of Yimengite

Crystallography of Yimengite
General Appearance of Type Material:
Grains (0.5-2 mm); irregular, platy to tabular.
Place of Conservation of Type Material:
National Museum for Geology, Beijing, China, number M09631.
Geological Setting of Type Material:
Metasomatic alteration product of chromian spinel in kimberlites.
Associated Minerals at Type Locality:
ApatiteChrome-Spinel (of Dana)ChromiteChromium-bearing DiopsideIlmenite
MathiasiteMoissaniteOlivine GroupPerovskitePhlogopite
PyropeZircon
Reference:
Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Yimengite, K(Cr, Ti,Fe,Mg)12O19, a new mineral from China. Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936

Synonyms of Yimengite

Other Language Names for Yimengite

Relationship of Yimengite to other Species
Other Members of Magnetoplumbite Group:
ChihuahuaiteFeAl12O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc
Hawthorneite Subgroup
Hibonite Subgroup
Magnetoplumbite Subgroup
Mizraite-(Ce)Ce(Al11Mg)O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc
UM1994-07-O:BaCrFeMgTiBaTi5Fe4Mg2CrO19
UM1994-08-O:CaFeKMgTiKTi5Fe3Cr2Mg2O19

Related Minerals -Strunz-mindat GroupingIso.m3m(4/m32/m)4.CC.Yttriaite-(Y)Y2O3Iso.m3(2/m3)4.CC.AllendeiteSc4Zr3O12Trig.3 :R34.CC.ChlorkyuygeniteCa12Al14O32[(H2O)4Cl2]Iso.43m :I43d4.CC.BotuobinskiteSrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2]Trig.3 :R34.CC.MirnyiteSrZr4+Mg2(Cr3+6Ti4+12)O38Trig.3 :R34.CC.Haitaite-(La)LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38Trig.3 :R34.CC.ShagamiteKFe11O17Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.BitikleiteCa3(Sb5+Sn4+)[AlO4]3Iso.m3m(4/m32/m) :Ia3d4.CC.Anzaite-(Ce)Ce3+ 4Fe2+Ti6O18 (OH)2Mon. 2/m :B2/m4.CC.Heamanite-(Ce)(K0.5Ce0.5)TiO3Iso.m3m(4/m32/m)4.CC.Priscillagrewite-(Y)(Ca2Y)Zr2(AlO4)3Iso.4.CC.SaranovskiteSrCaFe2+2(Cr4Ti2)Ti12O38Trig.3 :R34.CC.05ChrombismiteBi3+16Cr6+O27Iso.m3m(4/m32/m)4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.4.CC.10FluormayeniteCa12Al14O32F2Iso.43m :I43d4.CC.10FluorkyuygeniteCa12Al14O32[(H2O)4F2]Iso.43m :I43d4.CC.15GrossiteCaAl4O7Mon. 2/m :B2/b4.CC.17GoldschmidtiteKNbO3Iso.m3m(4/m32/m) :Pm3m4.CC.20Unnamed (HBU UK-4)NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig.3 :R34.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso.43m :I43d4.CC.20PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38Trig.3 :R34.CC.20Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig.3 :R34.CC.20UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig.3 :R34.CC.22GoreriteCaAlFe3+11O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.22KahlenbergiteKAl11O17Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.25NixoniteNa2Ti6O13Mon. 2/m :B2/m4.CC.25YafsoaniteCa3Te6+2(ZnO4)3Iso.m3m(4/m32/m) :Ia3d4.CC.30LatrappiteCa2NbFe3+O6Orth.mmm(2/m2/m2/m) :Pnma4.CC.30NatroniobiteNaNbO3Mon.4.CC.30PerovskiteCaTiO3Orth.mmm(2/m2/m2/m) :Pnma4.CC.30LueshiteNaNbO3Orth.mmm(2/m2/m2/m)4.CC.30BarioperovskiteBaTiO3Orth.mm2 :Amm24.CC.30MegawiteCaSnO3Orth.mmm(2/m2/m2/m) :Pban4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth.mmm(2/m2/m2/m) :Pnma4.CC.32UsturiteCa3(Sb5+Zr)[Fe3+O4]3Iso.m3m(4/m32/m) :Ia3d4.CC.32ElbrusiteCa3(U6+0.5Zr1.5)[Fe3+O4]3Iso.m3m(4/m32/m) :Ia3d4.CC.32MonteneveiteCa3Sb5+2(Fe3+2Fe2+)O12Iso.m3m(4/m32/m) :Ia3d4.CC.32DzhuluiteCa3(Sb5+Sn4+)[Fe3+O4]3Iso.m3m(4/m32/m) :Ia3d4.CC.35TausoniteSrTiO3Iso.43m4.CC.35Loparite(Na,REE)2Ti2O6Iso.m3m(4/m32/m)4.CC.35Panguite(Ti,Al,Sc,Mg,Zr,Ca)1.8O3Orth.mmm(2/m2/m2/m) :Pbca4.CC.35Isolueshite(Na,La)NbO3Iso.m3m(4/m32/m) :Pm3m4.CC.35MacedonitePbTiO3Tet. 4/mmm(4/m2/m2/m) :P4/nmm4.CC.37PauloabibiteNaNbO3Trig. 3 :R34.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig.3 :R34.CC.40Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12Trig.3 :R34.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.3 :R34.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig.3 :R34.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig.3 :R34.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.3 :R34.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 :R34.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig.3 :R34.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig.3 :R34.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.4.CC.40UhligiteCa3(Ti,Al,Zr)9O20 ?Iso.4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig.3 :R34.CC.45DiaoyudaoiteNaAl11O17Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45Mizraite-(Ce)Ce(Al11Mg)O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45LindqvistitePb2Mn2+Fe16O27Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45HiboniteCaAl12O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45Kangite(Sc,Ti,Al,Zr,Mg,Ca,◻)2O3Iso.m3(2/m3)4.CC.45ChihuahuaiteFeAl12O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 32 :P3124.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex. 6/mmm(6/m2/m2/m) :P63/mmc4.CC.50Jeppeite(K,Ba)2(Ti,Fe)6O13Mon. 2/m :B2/m4.CC.55ZenzénitePb3Fe3+4Mn4+3O15Hex. 6/mmm(6/m2/m2/m) :P63/mcm4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

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    • References for YimengiteⓘTurkey WellKiviets et al. (1998)
    China
     
    Dong Zhenxin et al. (1983)Dong Zhenxin et al. (1983)
    Russia
     
    Rezvukhin+3 other references
    Venezuela
     
    Nixon et al. (1989)
    Zimbabwe
     
    G.P. Bulanova et al. (2004)
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