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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Pyrolusite from
Brandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Brandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17292
Long-form Identifier:1:3:17292:7
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
11.6km (7.2 miles) ⓘGreenside Mine, Patterdale, Eden, Cumbria, England, UK
12.4km (7.7 miles) ⓘOre Gap, Borrowdale, Allerdale, Cumbria, England, UK
14.0km (8.7 miles) ⓘBurdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
15.1km (9.4 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
15.1km (9.4 miles) ⓘThief Gills, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
15.2km (9.4 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
15.9km (9.9 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
16.6km (10.3 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
17.5km (10.9 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
18.0km (11.2 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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