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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Malachite from
Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


Classification
Species:Malachite
Formula:Cu2(CO3)(OH)2
Comments:Cooper & Stanley (1990): "In 'traces' from an unspecified locality (Davidson & Thomson, 1951). As pretty acicular crystals with cerussite from the 'Golden Hugh' (D.R. Middleton, pers. comm.)."
Habit:acicular
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Linarite1
Data
Mineral Data:Click here to view Malachite data
Locality Data:Click here to view Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:7399
Long-form Identifier:1:3:7399:8
GUID (UUID V4):0
Nearest other occurrences of Malachite
0.3km (0.2 miles) ⓘThief Gills, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.2 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.3 miles) ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.6km (0.4 miles) ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.5 miles) ⓘTodd Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.5 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.5 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.0km (0.7 miles) ⓘSwinburn Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.2km (0.7 miles) ⓘWet Smale Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
References
Davidson, W.F. and Thomson, N. (1951) Some notes on the minerals of Westmorland and Cumberland. North West Naturalist, 23 (for 1948), 136-154.
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, T.F., Green, D.I. (2008) Baryte formation in supergene environments in the Caldbeck Fells, Cumbria. Journal of the Russell Society, 11. 48-50
 
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