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
Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Sphalerite13
Smithsonite5
Hemimorphite2
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Castle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17434
Long-form Identifier:1:3:17434:1
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.5km (0.9 miles) ⓘGoldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
1.7km (1.1 miles) ⓘDale Head North, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘYewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘBrandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
3.9km (2.4 miles) ⓘOld Brandley Mine, Above Derwent, Allerdale, Cumbria, England, UK
4.2km (2.6 miles) ⓘStoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
4.2km (2.6 miles) ⓘCobalt Mine, Scar Crag, Causey Pike, Above Derwent, Allerdale, Cumbria, England, UK
4.3km (2.7 miles) ⓘScar Crags, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
4.6km (2.9 miles) ⓘWad Mine, Seathwaite, Borrowdale, Allerdale, Cumbria, England, UK
4.8km (3.0 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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