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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Hemimorphite from
Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


05842400017365715274460.jpg
Hemimorphite, etc.

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
02736880017365715283959.jpg
Hemimorphite

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
05842400017365715274460.jpg
Hemimorphite, etc.

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
04102320017360818582448.jpg
Hemimorphite

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
05842400017365715274460.jpg
Hemimorphite, etc.

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
04102320017360818582448.jpg
Hemimorphite

Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Classification
Species:Hemimorphite
Formula:Zn4Si2O7(OH)2 · H2O
Comments:From the 'lowest level at 1500ft [450m]' (Hartley, 1984).
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Linarite2
Langite1
Chalcopyrite1
Schulenbergite1
Quartz1
Data
Mineral Data:Click here to view Hemimorphite data
Locality Data:Click here to view Silver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:6173
Long-form Identifier:1:3:6173:5
GUID (UUID V4):0
Nearest other occurrences of Hemimorphite
0.4km (0.2 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.3 miles) ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.3 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.5 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (1.0 miles) ⓘBrae Fell Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.7km (1.7 miles) ⓘIngray Gill, Caldbeck, Allerdale, Cumbria, England, UK
2.9km (1.8 miles) ⓘLonglands Fell Mine, Ireby and Uldale, Allerdale, Cumbria, England, UK
3.1km (1.9 miles) ⓘOld Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
3.1km (2.0 miles) ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK
References
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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