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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Harkerite from
Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia


00605060017271923596217.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
03093330017363196573743.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
00605060017271923596217.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
03093330017363196573743.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
00605060017271923596217.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
03093330017363196573743.jpg
Harkerite

Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
Locality type:Mine
Classification
Species:Harkerite
Formula:Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Harkerite data
Locality Data:Click here to view Kombat Mine, Kombat, Otavi Constituency, Otjozondjupa Region, Namibia
Data Identifiers
Mindat Occurrence Record ID:22752
Long-form Identifier:1:3:22752:8
GUID (UUID V4):0
References
Dunn, Pete J. (1991) Rare Minerals of the Kombat Mine. The Mineralogical Record, 22 (6) 421-425
 
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