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
Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia


Locality type:Mine
Classification
Species:'Tennantite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)As4S12S
Comments:Pseudomorphs of azurite and malachite after tennantite are found.
Habit:Tetrahedral crystals to 30cm on edge.
Colour:Mostly frosted or corroded
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz158
- var Milky Quartz1
Dolomite80
- var Cobalt-bearing Dolomite1
Galena76
Smithsonite69
Malachite59
Chalcopyrite56
Wulfenite52
- var Chillagite2
Mimetite50
Bornite45
Germanite40
Pyrite29
Azurite25
Enargite21
Cerussite19
Calcite17
Anglesite15
Cuprite15
Chalcocite15
Renierite14
Posnjakite12
Digenite12
Sphalerite12
Tsumcorite9
Zincolivenite8
Ovamboite7
Ludlockite6
Schulténite6
Gallite6
Native Silver5
Duftite5
Leiteite5
Siderite4
Langite4
Schaurteite4
Descloizite4
Helmutwinklerite4
Rosasite4
Goethite2
Arthurite2
Devilline2
Manganese Oxides2
Söhngeite2
Furutobeite2
Native Copper2
Scorodite2
Linarite2
Arsentsumebite1
Willemite1
Hydrocerussite1
Djurleite1
Phlogopite1
Turquoise1
Beudantite1
Serpierite1
Ankerite1
Keyite1
Beaverite-(Cu)1
Aragonite1
- var Lead-bearing Aragonite1
Gartrellite1
Adamite1
Reinerite1
Rutile1
Data
Mineral Data:Click here to view Tennantite Subgroup data
Locality Data:Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
Photo GalleryView Gallery (180 photos)
Data Identifiers
Mindat Occurrence Record ID:10848
Long-form Identifier:1:3:10848:1
GUID (UUID V4):0
Nearest other occurrences of Tennantite Subgroup
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
38.0km (23.6 miles) Khusib Springs Mine (Khuiseb Springs Mine), Grootfontein Constituency, Otjozondjupa Region, Namibia
38.6km (24.0 miles) Uitsab Mine (Uitsab prospect), Grootfontein Constituency, Otjozondjupa Region, Namibia
38.7km (24.1 miles) Abenab Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
39.5km (24.6 miles) Abenab West Mine, Abenab, Grootfontein Constituency, Otjozondjupa Region, Namibia
44.3km (27.5 miles) Wolkenhaube prospect, Gauss Farm 46, Otavi Constituency, Otjozondjupa Region, Namibia
45.0km (28.0 miles) Auros Farm 595, Otavi Constituency, Otjozondjupa Region, Namibia
50.1km (31.2 miles) Kupferberg Mine, Otavi Constituency, Otjozondjupa Region, Namibia
53.6km (33.3 miles) Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
References
 
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