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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Quartz from
South Roskear Mine, South Roskear group (Pendarves Consols), Camborne, Cornwall, England, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view South Roskear Mine, South Roskear group (Pendarves Consols), Camborne, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:690524
Long-form Identifier:1:3:690524:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.1km (0.1 miles) ⓘNew Roskear Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
0.2km (0.1 miles) ⓘNorth Roskear, Camborne, Cornwall, England, UK
0.3km (0.2 miles) ⓘNorth Roskear Mine, North Roskear, Camborne, Cornwall, England, UK
0.6km (0.4 miles) ⓘWheal Crofty (Old Wheal Crofty; incl. Wheal Knight; Wheal Vernon), North Roskear, Camborne, Cornwall, England, UK
0.7km (0.4 miles) ⓘDolcoath Mine, Camborne, Cornwall, England, UK
0.7km (0.4 miles) ⓘWheal Seton, North Roskear, Camborne, Cornwall, England, UK
0.8km (0.5 miles) ⓘLongclose Mine, Pool, Carn Brea, Cornwall, England, UK
0.8km (0.5 miles) ⓘWest Wheal Seton, Camborne, Cornwall, England, UK
0.8km (0.5 miles) ⓘNew Wheal Seton, Camborne, Cornwall, England, UK
0.9km (0.5 miles) ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
References
Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386
 
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