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
Gillheads Mine (Gill Heads Mine), Skyreholme, High and Low Bishopside, Harrogate, North Yorkshire, 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 Gillheads Mine (Gill Heads Mine), Skyreholme, High and Low Bishopside, Harrogate, North Yorkshire, England, UK
Data Identifiers
Mindat Occurrence Record ID:147201
Long-form Identifier:1:3:147201:1
GUID (UUID V4):0
Nearest other occurrences of Dolomite
18.6km (11.6 miles) ⓘPikedaw - Grizedales Veins, Settle - Malham Area, Craven, North Yorkshire, England, UK
20.6km (12.8 miles) ⓘRaygill quarry, Lothersdale, Craven, North Yorkshire, England, UK
30.2km (18.8 miles) ⓘWorton Hall Level, Askrigg, Richmondshire, North Yorkshire, England, UK
46.8km (29.1 miles) ⓘMiddleton Tyas Deposit, Richmond Mineral Belt, Richmondshire, North Yorkshire, England, UK
50.7km (31.5 miles) ⓘDalefoot Level, Mallerstang, Eden, Cumbria, England, UK
50.9km (31.6 miles) ⓘGreat Bell Workings, Mallerstang, Eden, Cumbria, England, UK
51.0km (31.7 miles) ⓘBirkett Common Mine, Mallerstang, Eden, Cumbria, England, UK
58.8km (36.6 miles) ⓘAugill Vein, Stainmore, Eden, Cumbria, England, UK
64.4km (40.0 miles) ⓘClosehouse Mine, Lunedale, County Durham, England, UK
70.3km (43.7 miles) ⓘGoldthorpe-Hickleton Complex coal mine, Doncaster, South Yorkshire, England, UK
References
Dunham, Sir K.C. and Wilson, A.A. (1985). Geology of the Northern Pennine Orefield: Vol 2, Stainmore to Craven. 2nd edition, British Geological Survey, 180 pp.pages 91, 103, 228, 233
 
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