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
Force Crag Mine, Coledale, 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 Force Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:15902
Long-form Identifier:1:3:15902:3
GUID (UUID V4):0
Nearest other occurrences of Dolomite
3.2km (2.0 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
4.8km (3.0 miles) ⓘThornthwaite Mine, Thornthwaite, Above Derwent, Allerdale, Cumbria, England, UK
5.4km (3.3 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
9.4km (5.9 miles) ⓘEmbleton Mine, Embleton, Allerdale, Cumbria, England, UK
9.5km (5.9 miles) ⓘEmbleton Quarry, Embleton, Allerdale, Cumbria, England, UK
11.7km (7.3 miles) ⓘRobin Hood Mine, Bassenthwaite, Allerdale, Cumbria, England, UK
12.9km (8.0 miles) ⓘThrelkeld Quarry, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
13.3km (8.2 miles) ⓘThrelkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK
15.1km (9.4 miles) ⓘWinder Pit No. 2, Lamplugh, Copeland, Cumbria, England, UK
15.2km (9.4 miles) ⓘEskett Mine, Lamplugh, Copeland, Cumbria, England, UK
References
Jarvis, Adam P., Catherine J. Gandy, and John A. Webb. 2023. "Controls on the Generation and Geochemistry of Neutral Mine Drainage: Evidence from Force Crag Mine, Cumbria, UK" Minerals 13, no. 5: 592. https://doi.org/10.3390/min13050592
 
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