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
Iron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


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 Iron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:557124
Long-form Identifier:1:3:557124:6
GUID (UUID V4):0
Nearest other occurrences of Dolomite
0.4km (0.2 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.3 miles) ⓘClints Gill (Roughton South Vein), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.6km (0.4 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.1km (0.7 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
1.8km (1.1 miles) ⓘShort Grain, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘHay Gill Copper Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.2km (1.3 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
2.5km (1.6 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Mike Leppington collection (visual identification)
 
and/or  
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