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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Cornwallite from
Bedford United Mine, Gulworthy, West Devon, Devon, England, UK


01071330017369326805674.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
08155080017369326814826.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
04418970017369326827875.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
09804520017369326803778.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
01071330017369326805674.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
08155080017369326814826.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
04418970017369326827875.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
09804520017369326803778.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
08700400017369326821676.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
07280370017369326832664.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
00175470017369326848945.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
03954010017369326836486.jpg
Cornwallite, etc.

Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
Locality type:Mine
Classification
Species:Cornwallite
Formula:Cu5(AsO4)2(OH)4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Cornubite5
Langite1
Data
Mineral Data:Click here to view Cornwallite data
Locality Data:Click here to view Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:3971
Long-form Identifier:1:3:3971:0
GUID (UUID V4):0
Localities for Cornwallite in this Region
Marquis Lode, Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
Nearest other occurrences of Cornwallite
0.0km (0.0 miles) ⓘMarquis Lode, Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
0.6km (0.3 miles) ⓘEast Gunnislake Mine (in part: South Bedford and East Gunnislake Mine), Gunnislake, Calstock, Cornwall, England, UK
1.0km (0.6 miles) ⓘWheal Emma, Devon Great Consols, Gulworthy, West Devon, Devon, England, UK
2.3km (1.4 miles) ⓘWheal Maria, Devon Great Consols, Gulworthy, West Devon, Devon, England, UK
17.2km (10.7 miles) ⓘPhoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK
67.4km (41.9 miles) ⓘBampfylde Mine (Prince Regent Mine; Poltimore Mine; North Molton copper mine), North Molton, North Devon, Devon, England, UK
75.8km (47.1 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
76.2km (47.4 miles) ⓘWheal Jewel, Gwennap, Cornwall, England, UK
76.4km (47.4 miles) ⓘWheal Gorland, St Day, Cornwall, England, UK
76.5km (47.5 miles) ⓘWheal Muttrall, Wheal Gorland, St Day, Cornwall, England, UK
References
[Ian Bruce, 1996 - pers. comm.] and BMS collection
 
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