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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Mimetite from
Burdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:River
Classification
Species:Mimetite
Formula:Pb5(AsO4)3Cl
Comments:Cooper & Stanley (1990): "From the old workings at the head of the gill, as an almost phosphate-free variety in small crystals with pharmacosiderite etc. (R.S.W. Braithwaite pers. comm., det. University of Manchester Institute of Science and Technology (UMIST): IR)."
Confirmation
Validity:Confirmed
Confirmation Methods:Infrared Spectroscopy
Data
Mineral Data:Click here to view Mimetite data
Locality Data:Click here to view Burdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:7748
Long-form Identifier:1:3:7748:4
GUID (UUID V4):0
Nearest other occurrences of Mimetite
1.3km (0.8 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
1.5km (0.9 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.7km (1.1 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
1.8km (1.1 miles) ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.9km (1.2 miles) ⓘBarstow's Trench, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.0km (1.3 miles) ⓘBrandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
2.1km (1.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.6km (1.6 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
 
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