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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Muscovite from
Brandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Brandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:7964
Long-form Identifier:1:3:7964:8
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.8km (0.5 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
1.0km (0.6 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
1.6km (1.0 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.2km (1.3 miles) ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.2km (1.4 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.3km (2.1 miles) ⓘPotts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
4.6km (2.9 miles) ⓘBannerdale Graphite Mine, Bannerdale, Mungrisdale, Eden, Cumbria, England, UK
7.2km (4.4 miles) ⓘBrundholme Mine (Glenderaterra Mine; Blencathra Mine), Glenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK
References
Sowerby, J. (1804-1817) British Mineralogy, or Coloured Figures Intended to Elucidate the Mineralogy of Great Britain. 5 volumes, London. Volume 5, 1817, 279.
Kingsbury, A.W.G. (MS1) (1953 or later) Investigation of the minerals of the Lake District, especially the Caldbeck area, in collaboration with J. Hartley. List of minerals found by us at many localities examined 1947-.
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
 
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