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Chrombismite

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Formula:
Bi16CrO27
System:
Tetragonal
Lustre:
Adamantine
Hardness:
3 - 3½
This page provides mineralogical data about Chrombismite.

Classification of Chrombismite

Approved
4.CC.05

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
Dana 7th ed.:
35.4.5.1
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Type Occurrence of Chrombismite

Physical Properties of Chrombismite

Adamantine
Hardness (Mohs):
3 - 3½

Crystallography of Chrombismite

Crystal System:
Tetragonal

Optical Data of Chrombismite

Type:
Uniaxial (+)
RI values:
nω = 2.500 nε = 2.550
Max Birefringence:
δ = 0.050
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Chrombismite

Formula:
Bi16CrO27
Essential elements:
All elements listed in formula:

Relationship of Chrombismite to other Species

4.CC.10FreudenbergiteNa2(Ti,Fe)8O16
4.CC.15GrossiteCaAl4O7
4.CC.20ChlormayeniteCa12Al14O32Cl2
4.CC.25YafsoaniteCa3Zn3(TeO6)2
4.CC.30Latrappite(Ca,Na)(Nb,Ti,Fe)O3
4.CC.30LueshiteNaNbO3
4.CC.30NatroniobiteNaNbO3
4.CC.30PerovskiteCaTiO3
4.CC.30BarioperovskiteBaTiO3
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3
4.CC.30MegawiteCaSnO3
4.CC.35Loparite-(Ce)(Na,Ce,Ca,Sr,Th)(Ti,Nb,Fe)O3
4.CC.35MacedonitePbTiO3
4.CC.35TausoniteSrTiO3
4.CC.35Isolueshite(Na,La,Ca)(Nb,Ti)O3
4.CC.40Crichtonite(Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38
4.CC.40Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38
4.CC.40Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38
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(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38
4.CC.40SenaitePb(Ti,Fe,Mn)21O38
4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe23+(Ti,Fe3+)18O38
4.CC.45DiaoyudaoiteNaAl11O17
4.CC.45HawthorneiteBa(MgTi3Cr4Fe4)O19
4.CC.45Hibonite(Ca,Ce)Al12O19
4.CC.45LindqvistitePb2Mn2+Fe16O27
4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19
4.CC.45PlumboferritePb2Fe3+11-xMnx2+O19-2x, x = 1/3
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19
4.CC.45HaggertyiteBa[Fe62+Ti5Mg]O19
4.CC.45NežilovitePbZn2(Mn4+,Ti4+)2Fe83+O19
4.CC.45BatiferriteBa[Ti2Fe83+Fe22+]O19
4.CC.45Hibonite-(Fe)(Fe,Mg)Al12O19
4.CC.45BarioferriteBaFe123+O19
4.CC.50Jeppeite(K,Ba)2(Ti,Fe)6O13
4.CC.55ZenzénitePb3(Fe,Mn)4Mn3O13
4.CC.60Mengxianminite(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

Other Names for Chrombismite

Name in Other Languages:
Spanish:Crombismita

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 Chrombismite

Reference List:
Zhou Xinchun, Yan Jincai, Wang Guanxin, Wang Shizhong, Liu Liang, and Shu Guiming (1996): A new oxide of bismuth and chromium - Chrombismite. Acta Mineralogica Sinica 16(1), 335-339 (in Chinese with English abstract). - New Minerals 1995-1999, 48 (abstract).

Zhou Xinchun, Yan Jincai, Wang Guanxin, Wang Shizhong, Liu Liang, and Shu Guiming (1997): Chrombismite, Bi16CrO27, a new mineral species from the Jialu gold mine, Shaanxi Province, China. Canadian Mineralogist 35, 35-38.

Mineralogical Record 28, 484.

Internet Links for Chrombismite

Localities for Chrombismite

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.
Brazil
 
  • Minas Gerais
    • Conceição do Mato Dentro
      • São José de Brejaúba (São José de Bryamba)
Gunnar Farber
China (TL)
 
  • Shaanxi Province
    • Shangluo Prefecture
      • Luonan Co.
Xinchun Zhou, Jincai Yan, Guanxin Wang, Shizhong Wang, Liang Liu, and Guiming Shu (1997): The Canadian Mineralogist 35, 35-38.
Mineral and/or Locality  
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