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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Fluorite from
Force Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Fluorite
Formula:CaF2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Force Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:16012
Long-form Identifier:1:3:16012:6
GUID (UUID V4):0
Nearest other occurrences of Fluorite
4.8km (3.0 miles) ⓘOld Brandley Mine, Above Derwent, Allerdale, Cumbria, England, UK
5.4km (3.3 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
13.6km (8.4 miles) ⓘKelton Quarry, Kirkland, Lamplugh, Copeland, Cumbria, England, UK
16.6km (10.3 miles) ⓘSmith vein, Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK
16.7km (10.4 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
16.7km (10.4 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
17.1km (10.6 miles) ⓘMowbray Mine, Frizington, Arlecdon & Frizington, Copeland, Cumbria, England, UK
17.2km (10.7 miles) ⓘKinniside Mine, Ennerdale and Kinniside, Copeland, Cumbria, England, UK
18.8km (11.7 miles) ⓘCleator Moor Iron Mines, Cleator Moor, Copeland, Cumbria, England, UK
20.4km (12.7 miles) ⓘHaile Moor Mine, Haile, 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
Young, B. & Cooper, A.H. (1988) The Geology and Mineralisation of Force Crag Mine, Cumbria. The Cumberland Geological Society, Proceedings: 5(1): 5-11.
 
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