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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Dolomite from
Thornthwaite Mine, Thornthwaite, Above Derwent, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Thornthwaite Mine, Thornthwaite, Above Derwent, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15923
Long-form Identifier:1:3:15923:6
GUID (UUID V4):0
Nearest other occurrences of Dolomite
4.1km (2.5 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
4.8km (3.0 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
6.7km (4.2 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
7.0km (4.3 miles) ⓘEmbleton Quarry, Embleton, Allerdale, Cumbria, England, UK
7.1km (4.4 miles) ⓘEmbleton Mine, Embleton, Allerdale, Cumbria, England, UK
7.2km (4.5 miles) ⓘRobin Hood Mine, Bassenthwaite, Allerdale, Cumbria, England, UK
10.1km (6.3 miles) ⓘThrelkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK
10.4km (6.4 miles) ⓘThrelkeld Quarry, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
11.1km (6.9 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
11.4km (7.1 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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