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Oscarkempffite

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Formula:
Ag
 
10
Pb
 
4
(Sb
 
17
Bi
 
9
)S
 
48
System:Orthorhombic
Name:Named in honour of Oscar Kempff Bacigalupo, Bolivian engineering geologist.


Lillianite homologue N = 4

Classification of Oscarkempffite

IMA status:Approved 2011
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Type Occurrence of Oscarkempffite

Type Locality:264 level, Colorada vein, Ánimas Mine, Atocha-Quechisla District, Sud Chichas Province, Potosí Department, Bolivia
Place of Conservation of Type Material:Department of Materials Engineering and Physics, University of Salzburg, Salzburg,Austria, specimen number 15000, and the Natural History Museum, London, United Kingdom, specimen number BM 20, 3

Crystallography of Oscarkempffite

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Cell Parameters:a = 13.199(2) Å, b = 19.332(3) Å, c = 8.294(1) Å
Ratio:a:b:c = 0.683 : 1 : 0.429
Unit Cell Volume:V 2,116.32 ų (Calculated from Unit Cell)
Comment:Space group: Pnca
X-Ray Powder Diffraction:
d-spacingIntensity
3.354(100)
2.988(40)
2.889(80)
2.263(40)
2.066(60)
1.766(50)

Chemical Properties of Oscarkempffite

Formula:
Ag
 
10
Pb
 
4
(Sb
 
17
Bi
 
9
)S
 
48
Essential elements:Ag, Bi, Pb, S, Sb
All elements listed in formula:Ag, Bi, Pb, S, Sb

Other Names for Oscarkempffite

Synonyms:
IMA 2011-029
Other Languages:

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Oscarkempffite

Reference List:

- +
http://boliviaminera.blogspot.com/2011/07/oscarkempffita-nuevo-mineral-boliviano.html
Topa, D., Makovicky, E., Paar, W.H., Stanley, C.J. and Roberts, A.C. (2011): Oscarkempffite, IMA 2011-029. CNMNC Newsletter No. 10, October 2011, page 2555

Internet Links for Oscarkempffite

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    • Localities for Oscarkempffite

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    (TL) indicates type locality. ? 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.
    Bolivia
     
    • Potosí Department
      • Sud Chichas Province
        • Atocha-Quechisla District
          • Ánimas Mine
            • Colorada vein
    		Topa, D., Makovicky, E., Paar, W.H., Stanley, C.J. and Roberts, A.C. (2011): Oscarkempffite, IMA 2011-029. CNMNC Newsletter No. 10, October 2011, page 2555
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