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Clino-oscarkempffite

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Formula:
Ag15Pb6Sb21Bi18S72
Hardness:
3 - 3½
Specific Gravity:
6.04 (Calculated)
Crystal System:
Monoclinic
A lillianite homologue. Clino-oscarkempffite is an N = 4 member of the lillianite homologous series, oversubstituted according to the Ag + (Bi, Sb) <-> 2Pb substitution to 122.8% in comparison to the formula of gustavite, AgPbBi3S6.


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Classification of Clino-oscarkempffiteHide

Approved
Approval Year:
2012
First Published:
2018

Physical Properties of Clino-oscarkempffiteHide

Hardness:
3 - 3½ on Mohs scale
Density:
6.04 g/cm3 (Calculated)

Chemical Properties of Clino-oscarkempffiteHide

Formula:
Ag15Pb6Sb21Bi18S72

Crystallography of Clino-oscarkempffiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 39.811(25) Å, b = 19.280(12) Å, c = 8.278(5) Å
γ = 96.195(6)°
Ratio:
a:b:c = 2.065 : 1 : 0.429
Unit Cell V:
6316.7 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.367Å(35)
3.362Å(35)
3.329Å(100)
2.984Å(30)
2.972Å(29)
2.882Å(43)
2.070Å(28)
2.058Å(16)
Comments:
From Type Description.

Type Occurrence of Clino-oscarkempffiteHide

Place of Conservation of Type Material:
Type material is deposited in the collections of the Department of Materials Engineering and Physics, University of Salzburg, Salzburg, Austria, specimen number 15010
Associated Minerals at Type Locality:
Reference:
Makovicky, E., Topa, D., Paar, W.H. (2018): The definition and crystal structure of clino-oscarkempffite, Ag15Pb6Sb21Bi18S72. European Journal of Mineralogy, 30: 569-579

Synonyms of Clino-oscarkempffiteHide

Other Language Names for Clino-oscarkempffiteHide

Relationship of Clino-oscarkempffite to other SpeciesHide

Other Members of this group:
Andorite IVPb18Ag15Sb47S96Mon. 2 : P2
Andorite VIAgPbSb3S6Orth. mm2 : Pmn21
AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
AschamalmitePb6Bi2S9Mon. 2/m
ErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Pbcn
EskimoiteAg7Pb10Bi15S36Mon.
FizélyiteAg5Pb14Sb21S48Mon. 2/m
GustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
HeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
JasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
LillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
MenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
OurayiteAg3Pb4Bi5S13Orth.
OyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
RamdohritePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24Mon. 2/m
RoshchiniteAg19Pb10Sb51S96Orth.
SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
StaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
TerrywallaceiteAgPb(Sb,Bi)3S6Mon. 2/m : P21/b
TreasuriteAg7Pb6Bi15S32Mon.
UchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
UstarasitePb(Bi,Sb)6S10 (?)
VikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
XilingolitePb3Bi2S6Mon.

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 Clino-oscarkempffiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Topa, D., Makovicky, E. and Paar, W.H. (2013) Clino-oscarkempffite, IMA 2012- 086. CNMNC Newsletter No. 16, August 2013, page 2696; Mineralogical Magazine, 77, 2695-2709.
Makovicky, E., Topa, D., Paar, W.H. (2018): The definition and crystal structure of clino-oscarkempffite, Ag15Pb6Sb21Bi18S72. European Journal of Mineralogy, 30: 569-579

Internet Links for Clino-oscarkempffiteHide

Localities for Clino-oscarkempffiteHide

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.
Bolivia (TL)
 
  • Potosí
    • Sud Chichas Province
      • Chocaya-Animas (Animas-Chocaya)
        • Ánimas Mine
          • Colorada vein
Topa, D., Makovicky, E. and Paar, W.H. (2013) Clino-oscarkempffite, IMA 2012- 086. CNMNC Newsletter No. 16, August 2013, page 2696; Mineralogical Magazine, 77, 2695-2709.(& Dan Topa, pers. comm. to Uwe Kolitsch)
 
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