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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Bismite from
Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK


Locality type:Mine
Classification
Species:Bismite
Formula:Bi2O3
Comments:Cooper & Stanley (1990): "the 'bismuth ochre' reported from 'Brandy Gill' as an associate of bismuth (Goodchild, 1882: 104) may have been bismite or bismutite. Bismite has been recorded from Carrock mine 'in minute amounts' as a yellowish white alteration of bismuthinite (Davidson & Thomson, 1951); and from the dumps of an old level 'at, or near, the junction of the east-west lead veins with the Emerson vein at the foot of Brandy Gill' (Hartley, 1984)."
Colour:yellowish white
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bismite data
Locality Data:Click here to view Carrock Mine, Mungrisdale, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:2010
Long-form Identifier:1:3:2010:7
GUID (UUID V4):0
References
Goodchild, J. G. (1882) Contributions towards a List of the Minerals occurring in Cumberland and Westmoreland. Transactions of the Cumberland Association for the Advancement of Literature and Science, 7. The Cumberland Association for the Advancement of Literature and Science. 101-126
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.
Day, Harry (1999) BMS Database, British Micromount Society.
 
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