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Yimengite

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

Classification of Yimengite

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 Yimengite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Black, grey in reflected light.
Streak:
Brown
Hardness (Mohs):
4

Chemical Properties of Yimengite

Formula:
K(Cr,Ti,Fe,Mg)12O19
Elements listed in formula:

Crystallography of Yimengite

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

Type Occurrence of Yimengite

Relationship of Yimengite to other Species

Other Members of Group:
BarioferriteBaFe123+O19
BatiferriteBaTi2Fe83+Fe22+O19
HaggertyiteBaFe42+Fe23+Ti5MgO19
HawthorneiteBaMgTi3Cr4Fe22+Fe23+O19
Hibonite(Ca,Ce)(Al,Ti,Mg)12O19
Hibonite-(Fe)(Fe,Mg)Al12O19
Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19
NežilovitePbZn2Mn24+Fe83+O19
PlumboferritePb2(Fe3+,Mn2+,Mg)11O19
4.CC.AllendeiteSc4Zr3O12
4.CC.Yttriaite-(Y)Y2O3
4.CC.05ChrombismiteBi16CrO27
4.CC.10FreudenbergiteNa(Ti34+Fe3+)O8
4.CC.15GrossiteCaAl4O7
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]
4.CC.25YafsoaniteCa3Te26+Zn3O12
4.CC.30LatrappiteCa2NbFe3+O6
4.CC.30LueshiteNaNbO3
4.CC.30NatroniobiteNaNbO3
4.CC.30PerovskiteCaTiO3
4.CC.30BarioperovskiteBaTiO3
4.CC.30LakargiiteCaZrO3
4.CC.30MegawiteCaSnO3
4.CC.35Loparite-(Ce)(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6
4.CC.35MacedonitePbTiO3
4.CC.35TausoniteSrTiO3
4.CC.35IsolueshiteNaNbO3
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
4.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)
4.CC.40Landauite(Na,Pb)(Mn2+,Y)(Zn,Fe)2(Ti,Fe3+,Nb)18(O,OH,F)O38
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38
4.CC.40Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40Dessauite-(Y)Sr(Y,U,Mn)Fe2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40CleusonitePb(U4+,U6+)Fe22+(Ti,Fe2+,Fe3+)18(O,OH)38
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe23+(Ti,Fe3+)18O38
4.CC.45DiaoyudaoiteNaAl11O17
4.CC.45HawthorneiteBaMgTi3Cr4Fe22+Fe23+O19
4.CC.45Hibonite(Ca,Ce)(Al,Ti,Mg)12O19
4.CC.45LindqvistitePb2Mn2+Fe163+O27
4.CC.45MagnetoplumbitePbFe123+O19
4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19
4.CC.45HaggertyiteBaFe42+Fe23+Ti5MgO19
4.CC.45NežilovitePbZn2Mn24+Fe83+O19
4.CC.45BatiferriteBaTi2Fe83+Fe22+O19
4.CC.45Hibonite-(Fe)(Fe,Mg)Al12O19
4.CC.45BarioferriteBaFe123+O19
4.CC.50Jeppeite(K,Ba)2(Ti,Fe3+)6O13
4.CC.55ZenzénitePb3Fe43+Mn34+O15
4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29
7.14.1EskolaiteCr2O3
7.14.2BracewelliteCrO(OH)
7.14.3GrimaldiiteCrO(OH)
7.14.4GuyanaiteCrO(OH)
7.14.6Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12
7.14.7McconnelliteCu1+CrO2
7.14.8RedledgeiteBa(Ti64+Cr23+)O16
7.14.9HawthorneiteBaMgTi3Cr4Fe22+Fe23+O19
7.14.10ZincochromiteZnCr2O4
7.14.11WattersiteHg41+Hg2+O2(CrO4)
7.14.12ChromiteFe2+Cr2O4
7.14.13MagnesiochromiteMgCr23+O4

Other Names for Yimengite

Name in Other Languages:
German:Yimengit
Spanish:Yimengita

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 Yimengite

Reference List:
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 Yimengite

mindat.org URL:
http://www.mindat.org/min-4361.html
Please feel free to link to this page.

Localities for Yimengite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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
Mineral and/or Locality  
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