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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Quartz from
Stoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK


00553680017527014458154.jpg
Quartz

Stoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
00553680017527014458154.jpg
Quartz

Stoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
06927870017510053715617.jpg
Quartz

Stoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Stoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17487
Long-form Identifier:1:3:17487:3
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.6km (0.4 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘOld Brandley Mine, Above Derwent, Allerdale, Cumbria, England, UK
2.3km (1.4 miles) ⓘYewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
2.5km (1.5 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘCobalt Mine, Scar Crag, Causey Pike, Above Derwent, Allerdale, Cumbria, England, UK
2.6km (1.6 miles) ⓘScar Crags, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘGoldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
4.2km (2.6 miles) ⓘCastle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
5.9km (3.7 miles) ⓘDale Head North, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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