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
Marquis Lode, Bedford United Mine, Gulworthy, West Devon, Devon, England, UK


Locality type:Lode
Classification
Species:Cornwallite
Formula:Cu5(AsO4)2(OH)4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Cornubite1
Data
Mineral Data:Click here to view Cornwallite data
Locality Data:Click here to view Marquis Lode, Bedford United Mine, Gulworthy, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:1651361
Long-form Identifier:1:3:1651361:1
GUID (UUID V4):0
Nearest other occurrences of Cornwallite
0.0km (0.0 miles) ⓘBedford United Mine, Gulworthy, West Devon, Devon, England, UK
0.5km (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 (1.5 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
76.3km (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 Jones collection.Identification: XRD
 
and/or  
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