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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Tennantite Subgroup from
Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia


Locality type:Mine
Classification
Species:'Tennantite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)As4S12S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tennantite Subgroup data
Locality Data:Click here to view Berg Aukas Mine, Grootfontein Constituency, Otjozondjupa Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:12629
Long-form Identifier:1:3:12629:2
GUID (UUID V4):0
Nearest other occurrences of Tennantite Subgroup
26.0km (16.2 miles) ⓘKhusib Springs Mine (Khuiseb Springs Mine), Grootfontein Constituency, Otjozondjupa Region, Namibia
29.0km (18.0 miles) ⓘAbenab West Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
30.0km (18.6 miles) ⓘAbenab Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
41.2km (25.6 miles) ⓘUitsab Mine (Uitsab prospect), Grootfontein Constituency, Otjozondjupa Region, Namibia
61.2km (38.0 miles) ⓘKombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
61.6km (38.2 miles) ⓘWolkenhaube prospect, Gauss Farm 46, Otavi Constituency, Otjozondjupa Region, Namibia
63.7km (39.6 miles) ⓘTsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
64.8km (40.3 miles) ⓘAuros Farm 595, Otavi Constituency, Otjozondjupa Region, Namibia
65.6km (40.7 miles) ⓘTsumeb West Mine, Tsumeb, Oshikoto Region, Namibia
72.7km (45.2 miles) ⓘKupferberg Mine, Otavi Constituency, Otjozondjupa Region, Namibia
References
Cairncross, Bruce (1997) The Otavi Mountain Land Cu-Pb-Zn-V Deposits, Namibia. The Mineralogical Record, 28 (2) 109-130p.117
 
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