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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Mimetite from
Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK


04313510017271987043828.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
07582680017271998161666.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
01147730017367157016061.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
09025650017271998179007.jpg
Mimetite, etc.

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
04313510017271987043828.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
09304100017367157039649.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
01147730017367157016061.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
09025650017271998179007.jpg
Mimetite, etc.

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
04313510017271987043828.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
03356700017271998211670.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
01432830017367157061025.jpg
Mimetite

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
09025650017271998179007.jpg
Mimetite, etc.

Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Locality type:Mine
Classification
Species:Mimetite
Formula:Pb5(AsO4)3Cl
Comments:similar to, but distinct from, Dry Gill "campylite" have been found on the dumps from the High Level (Cooper & Stanley, 1990-1991).
Habit:rounded
Colour:brown
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Wulfenite2
Pyromorphite1
Quartz1
Data
Mineral Data:Click here to view Mimetite data
Locality Data:Click here to view Mexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:7754
Long-form Identifier:1:3:7754:5
GUID (UUID V4):0
Nearest other occurrences of Mimetite
0.2km (0.1 miles) ⓘBarstow's Trench, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.3km (0.2 miles) ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.4km (0.2 miles) ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.7km (0.5 miles) ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
0.8km (0.5 miles) ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.0km (0.6 miles) ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.3km (0.8 miles) ⓘBrae Fell Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
1.5km (0.9 miles) ⓘShort Grain, Deer Hills, Caldbeck, Allerdale, Cumbria, England, UK
1.6km (1.0 miles) ⓘArm O'Grain, Mungrisdale, Eden, Cumbria, England, UK
1.8km (1.1 miles) ⓘDry Gill Mine, Caldbeck, Allerdale, Cumbria, England, UK
References
Greg, Robert Philips, Lettsom, William G. (1858) Manual of the Mineralogy of Great Britain and Ireland. John Van Voorst, London.
Jenkinson, H.I. (1875) Practical guide to the English Lake District, 4th ed. Carlisle.
Van Den Berg, W. (1985) Mineralen zoeken in de Caldbeck Fells (Lake District). Gea (Driemaandelijks tijdschrift van de Stichting Geologische Aktiviteiten), 18, 39-48 (in Dutch).
Cooper, M. P., Stanley, C. J. (1990) Minerals of the English Lake District - Caldbeck Fells. The Natural History Museum, London.
Stanley, Christopher J., Cooper, Michael P. (1991) Famous Mineral Localities: Pyromorphite-Group Minerals from the Caldbeck Fells, Cumbria, England. The Mineralogical Record, 22 (2) 105-121
 
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