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Yimengite

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Formula:
K(Cr,Ti,Fe,Mg)12O19
Colour:
Black, grey in reflected light.
Lustre:
Metallic
Hardness:
4
Crystal System:
Hexagonal
Name:
Named after its discovery locality, the Yimeng Mts (Yimeng Shan), Shandong Province, China.
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Classification of YimengiteHide

Approved
Approval Year:
1982
4.CC.45

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations
7.4.1.2

7 : MULTIPLE OXIDES
4 : AB12X19
7.14.5

7 : Oxides and Hydroxides
14 : Oxides of Cr

Physical Properties of YimengiteHide

Metallic
Transparency:
Opaque
Colour:
Black, grey in reflected light.
Streak:
Brown
Hardness:

Chemical Properties of YimengiteHide

Formula:
K(Cr,Ti,Fe,Mg)12O19

Crystallography of YimengiteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 5.85 Å, c = 22.94 Å
Ratio:
a:c = 1 : 3.921
Unit Cell V:
679.89 ų (Calculated from Unit Cell)

Type Occurrence of YimengiteHide

Synonyms of YimengiteHide

Other Language Names for YimengiteHide

German:Yimengit
Spanish:Yimengita

Relationship of Yimengite to other SpeciesHide

Other Members of this group:
BarioferriteBaFe3+12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
BatiferriteBaTi2Fe3+8Fe2+2O19Hex.
HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
Hibonite-(Fe)(Fe,Mg)Al12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex.
NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2

Related Minerals - Nickel-Strunz GroupingHide

4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.Yttriaite-(Y)Y2O3Iso.
4.CC.05ChrombismiteBi16CrO27Tet.
4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.
4.CC.15GrossiteCaAl4O7Mon. 2/m : B2/b
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 4 3m : I4 3d
4.CC.25YafsoaniteCa3Zn3(TeO6)2Iso. m3 (2/m 3)
4.CC.30LatrappiteCa2NbFe3+O6Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
4.CC.30NatroniobiteNaNbO3Mon.
4.CC.30PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30BarioperovskiteBaTiO3Orth. mm2 : Amm2
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30MegawiteCaSnO3Orth. mmm (2/m 2/m 2/m) : Pban
4.CC.35Loparite-(Ce)(Na,REE)Ti2O6
4.CC.35MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.CC.35TausoniteSrTiO3Iso. 4 3m
4.CC.35Isolueshite(Na,La)NbO3Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
4.CC.40Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3
4.CC.45DiaoyudaoiteNaAl11O17Hex.
4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex.
4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex.
4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2
4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex.
4.CC.45Hibonite-(Fe)(Fe,Mg)Al12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.50Jeppeite(K,Ba)2(Ti,Fe)6O13Mon.
4.CC.55ZenzénitePb3Fe4Mn3O15Hex.
4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

Related Minerals - Dana Grouping (8th Ed.)Hide

7.4.1.1Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
7.4.1.3HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.14.1EskolaiteCr2O3Trig.
7.14.2BracewelliteCrO(OH)Orth. mmm (2/m 2/m 2/m)
7.14.3GrimaldiiteCrO(OH)Trig.
7.14.4GuyanaiteCrO(OH)Orth.
7.14.6Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
7.14.7McconnelliteCuCrO2Trig.
7.14.8RedledgeiteBa(Ti4+6Cr3+2)O16Tet.
7.14.9HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.14.10ZincochromiteZnCr2O4Iso.
7.14.11Wattersite(Hg+2)2Hg2+(CrO4)O2Mon. 2/m : B2/b
7.14.12ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.14.13MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m

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.

References for YimengiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 (in Chinese). - American Mineralogist (1985), 70, 218 (abstract).
Scientia Sinica, Series B, 29, 920-923.

Internet Links for YimengiteHide

Localities for YimengiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Leonora Shire
Kiviets, G. B., Phillips, D., Shee, S. R., Vercoe, S. C., Barton, E. S., Smith, C. B., & Fourie, L. F. (1998). 40Ar/39Ar dating of yimengite from Turkey Well kimberlite, Australia: the oldest and the rarest. Ext. Abstr. In 7th International Kimberlite Conference (pp. 432-434).
China
 
  • Liaoning Province (Manchuria; Dongbei Region)
    • Liaodong Peninsula
      • Dalian Prefecture
        • Wafangdian Co.
          • Fuxian Kimberlite field
            • Toudaogou (incl. Pipes No. 51; 68 & 74)
  • Shandong Province
    • Linyi Prefecture
Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936.
        • Mengyin Co.
Dong Zhenxin, Zhou Jianxiong, Lu Qi, and Peng Zhizhong (1983): Chinese Science Bulletin [Kexue Tongbao] 28(15), 932-936.
Venezuela
 
  • Bolívar
    • Guaniamo
      • Quebrada Grande River
Nixon, P. H., & Condliffe, E. (1989). Yimengite of K–Ti metasomatic origin in kimberlitic rocks from Venezuela. Mineralogical Magazine. 53:305-309
Zimbabwe
 
  • Masvingo
    • Chivi District
G.P. Bulanova, E. Muchemwa, D.G. Pearson, B.J. Griffin, S.P. Kelley, S. Klemme, C.B. Smith (2004) Syngenetic inclusions of yimengite in diamond from Sese kimberlite (Zimbabwe) — evidence for metasomatic conditions of growth Lithos, 77, 181-192
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