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


Locality type:Mine
Classification
Species:Plumbogummite
Formula:PbAl3(PO4)(PO3OH)(OH)6
Comments:Based solely on a Kingsbury reference? Cooper & Stanley (1990): "A pale yellowish green crystalline mineral associated with lindgrenite from the east level gave an X-ray powder photograph close to that of the 'well-known pale blue Cumberland plumbogummite' (Kingsbury & Hartley, 1955: 724). Also recorded from the upper west level (Hartley, 1984)."
Colour:pale yellowish green
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Plumbogummite data
Locality Data:Click here to view Brandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:8762
Long-form Identifier:1:3:8762:9
GUID (UUID V4):0
Nearest other occurrences of Plumbogummite
0.8km (0.5 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
0.8km (0.5 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.8km (1.1 miles) ⓘTodd Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.0km (1.3 miles) ⓘBurdell Gill, Coombe Height, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.1km (1.3 miles) ⓘBalliway Rigg, Caldbeck, Allerdale, Cumbria, England, UK
2.2km (1.4 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
References
Kingsbury, Arthur W. G., Hartley, J. (1955) On the occurrence of the rare copper molybdate, lindgrenite, at Brandy Gill, Carrock Fell, Cumberland. Mineralogical Magazine and Journal of the Mineralogical Society, 30 (230) 723-726 doi:10.1180/minmag.1955.030.230.06
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.
 
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