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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Psilomelane from
Ore Gap, Borrowdale, Allerdale, Cumbria, England, UK


Locality type:Gap
Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Ore Gap, Borrowdale, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17399
Long-form Identifier:1:3:17399:9
GUID (UUID V4):0
Nearest other occurrences of Psilomelane
13.9km (8.6 miles) ⓘCobalt Mine, Scar Crag, Causey Pike, Above Derwent, Allerdale, Cumbria, England, UK
14.9km (9.3 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
24.3km (15.1 miles) ⓘBigrigg Mine, Bigrigg, Egremont, Copeland, Cumbria, England, UK
26.1km (16.2 miles) ⓘBurdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
27.2km (16.9 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
27.3km (16.9 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
27.5km (17.1 miles) ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
27.7km (17.2 miles) ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
27.8km (17.3 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
27.9km (17.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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