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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Gypsum from
Wheal Betsy (North Wheal Friendship; Prince Arthur Consols), Mary Tavy, West Devon, Devon, England, UK


00492500017598498669293.jpg
Gypsum, etc.

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
02884040017598498255960.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
01827820017598498074583.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
01415480017598498449346.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
09309140017598498637092.jpg
Gypsum, etc.

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
06576620017598498237022.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
02974190017598498051340.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
00458400017598498435478.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
04583210017599621819426.jpg
Gypsum, etc.

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
05793610017599621817884.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
06957950017599621815911.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
08382040017599621813432.jpg
Gypsum

Wheal Betsy, Mary Tavy, West Devon, Devon, England, UK
Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Comments:A common post mining mineral.
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Pyrrhotite1
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Wheal Betsy (North Wheal Friendship; Prince Arthur Consols), Mary Tavy, West Devon, Devon, England, UK
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:485398
Long-form Identifier:1:3:485398:5
GUID (UUID V4):0
Nearest other occurrences of Gypsum
2.1km (1.3 miles) ⓘWheal Friendship, Mary Tavy, West Devon, Devon, England, UK
11.5km (7.1 miles) ⓘWheal Josiah, Devon Great Consols, Gulworthy, West Devon, Devon, England, UK
12.1km (7.5 miles) ⓘEast Gunnislake Mine (in part: South Bedford and East Gunnislake Mine), Gunnislake, Calstock, Cornwall, England, UK
12.1km (7.5 miles) ⓘSouth Bedford Mine (South Gunnislake Mine; in part: South Bedford and East Gunnislake Mine), Gulworthy, West Devon, Devon, England, UK
12.2km (7.6 miles) ⓘVirtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
17.8km (11.1 miles) ⓘHolmbush Mine, Callington United Mines (incl. Emmens United Mines), Stokeclimsland, Cornwall, England, UK
18.3km (11.3 miles) ⓘRamsley Mine (Fursdon Mine), South Tawton, West Devon, Devon, England, UK
25.8km (16.1 miles) ⓘWheal Wrey, Wrey and Ludcott United Mines, St Ive, Cornwall, England, UK
28.4km (17.6 miles) ⓘSilverbrook Mine, Ilsington, Teignbridge, Devon, England, UK
28.4km (17.7 miles) ⓘWheal Trelawny (incl. Wheal Honey), Menheniot, Cornwall, England, UK
References
Collection Richard De Nul
 
and/or  
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