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
Dolcoath Mine, Camborne, Cornwall, England, UK


09338200017492922054153.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
01647530017271996973950.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
04376400017271996987080.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
07239990017271996994817.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
09338200017492922054153.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
01647530017271996973950.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
04376400017271996987080.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
07239990017271996994817.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
08142870017493066276467.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
03142530017271997015941.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
04376400017271996987080.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
07239990017271996994817.jpg
Cassiterite

Dolcoath Mine, Camborne, Cornwall, England, UK
Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Formation:Primary
Comments:Dolcoath Mine was renowned for high quality examples of the form of Cassiterite known as 'sparable tin', an elongate acutely tapered crystal form that bore a resemblance to hand made 'sparrow bill' nails.
Quality for species:Excellent - world class for species or very significant. (!!)
Significance:Significant commercial deposit of this mineral.
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz10
Pyrite5
Chlorite Group3
Chalcopyrite2
Sphalerite1
Arsenopyrite1
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Dolcoath Mine, Camborne, Cornwall, England, UK
Photo GalleryView Gallery (21 photos)
Data Identifiers
Mindat Occurrence Record ID:2907
Long-form Identifier:1:3:2907:0
GUID (UUID V4):0
Localities for Cassiterite in this Region
Harriett Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
New Roskear Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
Nearest other occurrences of Cassiterite
0.4km (0.3 miles) ⓘHarriett Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
0.5km (0.3 miles) ⓘCook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.6km (0.4 miles) ⓘNew Cook's Kitchen Mine, Pool, Carn Brea, Cornwall, England, UK
0.7km (0.4 miles) ⓘSouth Crofty Mine, Pool, Carn Brea, Cornwall, England, UK
0.7km (0.4 miles) ⓘCamborne Consols, Camborne, Cornwall, England, UK
0.7km (0.4 miles) ⓘSouth Roskear Mine, South Roskear group (Pendarves Consols), Camborne, Cornwall, England, UK
0.7km (0.5 miles) ⓘNew Roskear Shaft, Dolcoath Mine, Camborne, Cornwall, England, UK
0.8km (0.5 miles) ⓘStray Park Mine, Camborne, Cornwall, England, UK
0.9km (0.5 miles) ⓘTincroft Mine, Pool, Carn Brea, Cornwall, England, UK
1.0km (0.6 miles) ⓘNorth Wheal Crofty, 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
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
Royal Cornwall Polytechnic Society (1870): 38. Annual Report, pp. 30-31
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 (1920) On the occurrence of Phenacite and Scheelite at Wheal Cock, St. Just, Cornwall. Mineralogical Magazine and Journal of the Mineralogical Society, 19 (88) 19-22 doi:10.1180/minmag.1920.019.88.06
 
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