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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Calcite from
Threlkeld Quarry, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK


Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Threlkeld Quarry, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15192
Long-form Identifier:1:3:15192:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
7.8km (4.9 miles) ⓘGreenside Mine, Patterdale, Eden, Cumbria, England, UK
8.7km (5.4 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
8.7km (5.4 miles) ⓘMosedale Quarry, Mungrisdale, Eden, Cumbria, England, UK
8.7km (5.4 miles) ⓘSmith vein, Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK
9.5km (5.9 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
9.5km (5.9 miles) ⓘWythburn Mine (Wheal Henry; Helvellyn Mine), St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
9.8km (6.1 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
9.8km (6.1 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
10.1km (6.3 miles) ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
10.2km (6.3 miles) ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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