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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Langite from
Brae Fell Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Langite
Formula:Cu4(SO4)(OH)6 · 2H2O
Comments:Cooper & Stanley (1990): "on one specimen as minute crystalline aggregates (C.M. Leppington Collection; det. Leeds Univ.: XRD, D.I. Green, pers. comm.)."
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Data
Mineral Data:Click here to view Langite data
Locality Data:Click here to view Brae Fell Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:6796
Long-form Identifier:1:3:6796:6
GUID (UUID V4):0
Nearest other occurrences of Langite
0.9km (0.6 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.3km (0.8 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.3km (0.8 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (1.0 miles) ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘPotts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.0km (1.9 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
7.8km (4.8 miles) ⓘSaddleback Old Mine, Mungrisdale, Eden, Cumbria, England, UK
8.5km (5.3 miles) ⓘBrundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK
16.0km (9.9 miles) ⓘStoneycroft Smelter slag locality, Above Derwent, 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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