Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chalcocite from
Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia


03554340017363069571507.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
01786850017272006514812.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
06315160017272006522519.jpg
Chalcocite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
08818540017377343874968.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
06762890017363069551840.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09055810017367219014602.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
06868740017367219026511.jpg
Chalcocite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
02186950017377343841671.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
03554340017363069571507.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
01786850017272006514812.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
06315160017272006522519.jpg
Chalcocite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
04822820017377757975002.jpg
Chalcocite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Germanite70
Bornite67
Chalcopyrite51
Pyrite44
Dolomite42
Sphalerite34
Renierite27
Calcite25
Gallite17
Galena17
Quartz17
Native Silver16
Tennantite Subgroup15
Tennantite-(Zn)11
Smithsonite10
Ovamboite10
Covellite8
Enargite7
Stromeyerite6
Leiteite6
Ludlockite5
Argutite5
Zincolivenite5
Digenite5
Stottite5
Schaurteite4
Olivenite4
Söhngeite4
Siderite4
Naumannite3
Bartelkeite3
Otjisumeite3
Malachite3
Azurite3
Galloplumbogummite2
Keyite2
Tungstenite2
Wulfenite2
Plumbotsumite1
Marcasite1
Melanotekite1
Chlorargyrite1
Djurleite1
Mimetite1
Alamosite1
Calvertite1
Ferberite1
Calcioandyrobertsite1
Tsumcorite1
Karlseifertite1
Feinglosite1
Adamite1
Goethite1
Philipsbornite1
Mottramite1
Reinerite1
Schneiderhöhnite1
Serpierite1
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
Photo GalleryView Gallery (57 photos)
Data Identifiers
Mindat Occurrence Record ID:13305
Long-form Identifier:1:3:13305:2
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
4.5km (2.8 miles) ⓘTsumeb West Mine, Tsumeb, Oshikoto Region, Namibia
17.8km (11.0 miles) ⓘAlt Bobos Mine, Uris Farm 481, Guinas, Oshikoto Region, Namibia
22.4km (13.9 miles) ⓘTschudi Mine, Guinas, Oshikoto Region, Namibia
33.2km (20.6 miles) ⓘNosib Mine, Guinas, Oshikoto Region, Namibia
38.0km (23.6 miles) ⓘKhusib Springs Mine (Khuiseb Springs Mine), Grootfontein Constituency, Otjozondjupa Region, Namibia
38.7km (24.1 miles) ⓘAbenab Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
50.1km (31.2 miles) ⓘKupferberg Mine, Otavi Constituency, Otjozondjupa Region, Namibia
50.7km (31.5 miles) ⓘGross Otavi Mine (Gross Otavi prospect), Otavi Constituency, Otjozondjupa Region, Namibia
53.6km (33.3 miles) ⓘKombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
54.6km (33.9 miles) ⓘGuchab prospect (Guchab mine), Guchab-Rodgerberg area, Otavi Constituency, Otjozondjupa Region, Namibia
References
Kamona, A. F., Lévêque, J., Friedrich, G., Haack, U. (1999) Lead isotopes of the carbonate-hosted Kabwe, Tsumeb, and Kipushi Pb-Zn-Cu sulphide deposits in relation to Pan African orogenesis in the Damaran-Lufilian Fold Belt of Central Africa. Mineralium Deposita, 34 (3). 273-283 doi:10.1007/s001260050203
Chetty, D., Frimmel, H. E. (2000) The role of evaporites in the genesis of base metal sulphide mineralisation in the Northern Platform of the Pan-African Damara Belt, Namibia: geochemical and fluid inclusion evidence from carbonate wall rock alteration. Mineralium Deposita, 35 (4) 364-376 doi:10.1007/s001260050247
Jambor, J.L., Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.
Kampf, A. R., Désor, J., Ma, C. (2024) Karlseifertite, Pb(Ga₂Ge)(AsO₄)₂(OH)₆, a new dussertite-group mineral, from Tsumeb, Namibia. European Journal of Mineralogy, 36 (5). 873-878 doi:10.5194/ejm-36-873-2024
 
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