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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Serpierite from
Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Serpierite
Formula:Ca(Cu2+,Zn2+)4(S6+O4)2(OH)6 · 3H2O
Comments:Kingsbury reference. Kingsbury & Hartley (1957): "At this locality the serpierite forms tufts of minute, pale-blue needles and resembles the Ross Island and some of the Laurium material; it is associated with smithsonite, malachite, aurichalcite, and other secondary copper minerals."
Habit:tufts of minute needles
Colour:pale blue
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Serpierite data
Locality Data:Click here to view Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17618
Long-form Identifier:1:3:17618:1
GUID (UUID V4):0
Nearest other occurrences of Serpierite
1.1km (0.7 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (0.9 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.0km (1.9 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
19.0km (11.8 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
42.1km (26.2 miles) ⓘTynebottom Mine, Garrigill, Alston Moor, Eden, Cumbria, England, UK
45.3km (28.1 miles) ⓘNentsberry Haggs Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
46.3km (28.8 miles) ⓘBrownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor, Eden, Cumbria, England, UK
47.2km (29.3 miles) ⓘSmallcleugh Mine, Nenthead, Alston Moor, Eden, Cumbria, England, UK
76.5km (47.5 miles) ⓘCastleside Smelting Mill slag locality, Healeyfield, County Durham, England, UK
References
Kingsbury, A.W.G. (MS1) (1953 or later) Investigation of the minerals of the Lake District, especially the Caldbeck area, in collaboration with J. Hartley. List of minerals found by us at many localities examined 1947-.
Kingsbury, Arthur W. G., Hartley, J. (1957) Serpierite from the Lake District. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (238) 604-605 doi:10.1180/minmag.1957.031.238.07
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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