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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Sphalerite from
Wheal Gorland, St Day, Cornwall, England, UK


Locality type:Mine
Classification
Species:Sphalerite
Formula:ZnS
Colour:black
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Wheal Gorland, St Day, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:17772
Long-form Identifier:1:3:17772:8
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
0.6km (0.4 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
0.8km (0.5 miles) ⓘWheal Unity Wood (Tolgullow United Mine; West Poldice Mine), Chacewater, Cornwall, England, UK
0.9km (0.6 miles) ⓘWheal Jewel, Gwennap, Cornwall, England, UK
1.3km (0.8 miles) ⓘPoldice Mine, St Day United Mines (Poldice Mines), Gwennap, Cornwall, England, UK
1.5km (0.9 miles) ⓘEast Wheal Virgin, Great Consolidated Mines, Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
1.5km (1.0 miles) ⓘGreat Consolidated Mines, Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK
1.6km (1.0 miles) ⓘKillifreth Mine, Chacewater, Cornwall, England, UK
1.6km (1.0 miles) ⓘEast Wheal Chance, Chacewater, Cornwall, England, UK
1.7km (1.1 miles) ⓘCreegbrawse and Penkevil Mine, Creegbrawse, Chacewater, Cornwall, England, UK
1.9km (1.2 miles) ⓘHallenbeagle Mine, Chacewater, Cornwall, England, UK
References
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
LeBoutillier, N.G.; Shail, R.K.; Jewson, C. (2003) Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall. Geoscience in South-West England, 10 (4). 403-409
 
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