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

Locality type:Mine
Classification
Species:Lindgrenite
Formula:Cu3(MoO4)2(OH)2
Comments:Kingsbury reference. Cooper & Stanley (1990): "The first (and only) British occurrence (Kingsbury & Hartley, 1955). The mineral was found in specimens from the dumps of the eastern level as small (< 1.5mm), dark olive-green bladed crystals on a yellowish-green crystalline mineral (which 'gives [an x-ray powder] pattern and spacings very close to those of the well-known pale blue Cumberland plumbogummite' op. cit.: 724.) It was found in cavities in granophyre presumed to be from the vein wall. Only a few specimens were obtained (Kingsbury and Russell Collections, BM(NH)) and, despite the exertions of a generation of collectors, none has been found since."
Habit:bladed
Colour:dark olive-green
Confirmation
Validity:Unconfirmed/Questioned
References
References:Kingsbury, A.W.G. and Hartley, J. (1955) On the occurrence of the rare copper molybdate, lindgrenite, at Brandy Gill, Carrock Fell. Cumberland. Mineralogical Magazine, 30(230), 723-726.;
Hartley, J. (1984) A list of minerals associated with the ore deposits of the Caldbeck Fells, Cumbria. Transactions of the Leeds Geological Association, 10, 22-39.;
Cooper, M.P. and Stanley, C.J. (1990) Minerals of the English Lake District: Caldbeck Fells. Natural History Museum Publications, London, 160 pp.;
Cooper, M.P. and Stanley, C.J. (1991) Famous mineral localities: Pyromorphite group minerals from the Caldbeck Fells, Cumbria, England. Mineralogical Record, 22(2), 105-121 (referring to Hartley, 1984).
Data
Mineral Data:Click here to view Lindgrenite data
Locality Data:Click here to view Brandy Gill Mine, Mungrisdale, Eden, Cumbria, England, UK
 
Mineral and/or Locality  
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