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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Azurite from
Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Azurite
Formula:Cu3(CO3)2(OH)2
Comments:Cooper & Stanley (1990): "From the 30fm and 90fm level dumps (Hartley, 1984). A specimen in the King Collection (National Museum of Wales, Cardiff), obtained from an old collection by W.F. Davidson, and reputed to come from Thief Gills [i.e. probably the ancient outcrop workings in higher Roughton Gill] in 1912 is, if authentic, easily the best azurite from the area. It shows a striated crystal 15mm in diameter with fibrous malachite on 'copper pitch'."
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Azurite data
Locality Data:Click here to view Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:14752
Long-form Identifier:1:3:14752:3
GUID (UUID V4):0
Nearest other occurrences of Azurite
0.6km (0.4 miles) ⓘThief Gills, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.6km (0.4 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.5km (1.6 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
2.7km (1.7 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘPotts Gill Copper Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
6.6km (4.1 miles) ⓘGlenderaterra Valley, Threlkeld, Eden, Cumbria, England, UK
16.3km (10.1 miles) ⓘYewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
References
Hartley, J. (1984) A list of minerals associated with the ore deposits of the Caldbeck Fells, Cumbria. Transactions of the Leeds Geological Association, 10 (3) 22-39
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
Bridges, Trevor F., Green, David, Rumsey, Michael S., Leppington, C. Michael (2011) A review of the mineralisation of the Roughton Gill mines, Caldbeck Fells, Cumbria: Part 3 Roughton Gill Mine. Journal of the Russell Society, 14. 3-23
 
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