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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Jamesonite from
Wet Swine Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Stream
Classification
Species:Jamesonite
Formula:Pb4FeSb6S14
Comments:Cooper & Stanley (1990): "Forms straight or curved capillary crystals between 60 and 250µm in length with diamond-shaped cross-sections 2 to 20µm in width. These hair-like crystals occur in groups grown in coarse quartz... (Fortey et al., 1984: 60)."
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jamesonite data
Locality Data:Click here to view Wet Swine Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:6520
Long-form Identifier:1:3:6520:7
GUID (UUID V4):0
Nearest other occurrences of Jamesonite
0.7km (0.4 miles) ⓘCaldew Valley, Mungrisdale, Eden, Cumbria, England, UK
1.2km (0.8 miles) ⓘGrains Gill, Mungrisdale, Eden, Cumbria, England, UK
1.3km (0.8 miles) ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK
5.0km (3.1 miles) ⓘNether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK
9.6km (5.9 miles) ⓘWanthwaite Mine, St. John's Castlerigg and Wythburn, Allerdale, Cumbria, England, UK
64.4km (40.0 miles) ⓘLouisa Mine, Glendinning, Glenshanna Burn, Eskdale, Dumfries and Galloway, Scotland, UK
References
Fortey, N.J., Ingham, J.D., Skilton, B.R.H., Young, B., Shepherd, T.J. (1984) Antimony mineralization at Wet Swine Gill, Caldbeck Fells, Cumbria. Proceedings of the Yorkshire Geological Society, 45(1-2), 59-65.
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
 
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