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 Crofty Mine, Pool, Carn Brea, Cornwall, England, UK


07769270017271999048558.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
07542460017271997068950.jpg
Cassiterite

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
03774180017362171009283.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
00807520017271997098810.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
06878490017372323029339.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
07542460017271997068950.jpg
Cassiterite

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
03774180017362171009283.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
00807520017271997098810.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
07769270017271999048558.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
07542460017271997068950.jpg
Cassiterite

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
00481770017813251512403.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
00807520017271997098810.jpg
Cassiterite, etc.

South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
Locality type:Project
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz12
Fluorite4
Chlorite Group3
Tourmaline3
Sphalerite1
Feldspar Group1
Chalcopyrite1
Arsenopyrite1
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view South Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
Photo GalleryView Gallery (21 photos)
Data Identifiers
Mindat Occurrence Record ID:2903
Long-form Identifier:1:3:2903:2
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.1km (0.1 miles) ⓘNew Cook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.4km (0.2 miles) ⓘCook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.4km (0.2 miles) ⓘNorth Wheal Crofty, Pool, Carn Brea, Cornwall, England, UK
0.5km (0.3 miles) ⓘTincroft Mine, Pool, Carn Brea, Cornwall, England, UK
0.7km (0.4 miles) ⓘDolcoath Mine, Camborne, Cornwall, England, UK
0.8km (0.5 miles) ⓘWheal Providence, Penhallick, Carn Brea, Cornwall, England, UK
0.8km (0.5 miles) ⓘWheal Fanny, Tregajorran, Carn Brea, Cornwall, England, UK
0.8km (0.5 miles) ⓘNew Roskear Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
0.9km (0.5 miles) ⓘSouth Roskear Mine, South Roskear group (Pendarves Consols), Camborne, Cornwall, England, UK
1.0km (0.6 miles) ⓘEast Wheal Seton, Tolvaddon, Illogan, Cornwall, England, UK
References
Hill, J. B., MacAlister, D. A. (1906) The Geology of Falmouth and Truro and of the Mining District of Camborne and Redruth - Memoirs of the Geological Survey. Geological Survey of Great Britain.
Russell, Arthur (1911) On the occurrence of Phenacite in Cornwall. Mineralogical Magazine and Journal of the Mineralogical Society, 16 (73) 55-62 doi:10.1180/minmag.1911.016.073.08
Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London.pp.317-326
Darnley, A. G., English, T. H., Sprake, O., Preece, E. R., Avery, D. (1965) Ages of uraninite and Coffinite from south-west England. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 159-176 doi:10.1180/minmag.1965.034.268.13
 
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