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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Cassiterite from
South Wheal Frances, South Frances United Mines, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view South Wheal Frances, South Frances United Mines, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:2914
Long-form Identifier:1:3:2914:8
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.8km (0.5 miles) ⓘNorth Wheal Frances (incl. Foxhole Mine), Bosleake, Carn Brea, Cornwall, England, UK
0.9km (0.6 miles) ⓘWest Wheal Frances, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
1.2km (0.7 miles) ⓘWest Basset Stamps (Wheal Haste), Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
1.2km (0.7 miles) ⓘWheal Basset, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK
1.4km (0.9 miles) ⓘEast Wheal Grenville, Grenville United Mines, Troon, Camborne, Cornwall, England, UK
1.4km (0.9 miles) ⓘSouth Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK
1.5km (0.9 miles) ⓘWheal Providence, Penhallick, Carn Brea, Cornwall, England, UK
1.6km (1.0 miles) ⓘCarn Brea Mine, Pool, Carn Brea, Cornwall, England, UK
1.6km (1.0 miles) ⓘSouth Carn Brea Mine, Carnkie, Carn Brea, Cornwall, England, UK
1.6km (1.0 miles) ⓘEast Wheal Basset, Redruth, Cornwall, England, UK
References
Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London.pp.341-351
 
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