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


09170280017272731079271.jpg
Dolomite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09533380017362919245248.jpg
Cobalt-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09778200017272007592867.jpg
Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
07947010017271929102488.jpg
Zinc-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09170280017272731079271.jpg
Dolomite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
03688990017362919249177.jpg
Cobalt-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09778200017272007592867.jpg
Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
07947010017271929102488.jpg
Zinc-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09170280017272731079271.jpg
Dolomite, etc.

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09533380017362919245248.jpg
Cobalt-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09778200017272007592867.jpg
Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
09269800017272731093573.jpg
Zinc-bearing Dolomite

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia
Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite229
Malachite156
Wulfenite145
Cuprite108
- var Chalcotrichite5
Duftite99
Cerussite90
Bornite86
Willemite85
Chalcopyrite84
Dioptase82
Mimetite80
Tennantite Subgroup79
Smithsonite56
Quartz49
Azurite43
Chalcocite42
Native Copper38
Conichalcite32
Digenite30
Mottramite26
Goethite21
Rosasite20
Sphalerite17
Native Silver17
Galena12
Plancheite8
Tsumcorite8
Jamesite8
Pyrite8
Hematite6
Covellite6
Stromeyerite6
Aragonite6
- var Lead-bearing Aragonite4
- var Zinc-bearing Aragonite1
Dolomite6
- var Zinc-bearing Dolomite3
- var Cobalt-bearing Dolomite3
Zincolivenite5
Agardite-(Ce)5
Anglesite5
Helvine3
Arsentsumebite3
Bayldonite3
Austinite3
Kaolinite2
Renierite2
Gartrellite2
Manganese Oxides2
Tenorite2
Limonite1
Molybdofornacite1
Germanite1
Enargite1
Brochantite1
Olivenite1
Greenockite1
Köttigite1
Beaverite-(Cu)1
Hydrocerussite1
Adamite1
Minrecordite1
Leadhillite1
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia
Photo GalleryView Gallery (117 photos)
Data Identifiers
Mindat Occurrence Record ID:4642
Long-form Identifier:1:3:4642:8
GUID (UUID V4):0
Nearest other occurrences of Dolomite
4.5km (2.8 miles) ⓘTsumeb West Mine, Tsumeb, Oshikoto Region, Namibia
9.2km (5.7 miles) ⓘFriesenberg prospect, Tsumeb, Oshikoto Region, Namibia
37.6km (23.4 miles) ⓘUitsabpad, Otavi Constituency, Otjozondjupa 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
49.2km (30.6 miles) ⓘRohrers, 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
References
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
 
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