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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Cassiterite from
Wheal Franco (New Wheal Franco; Old Wheal Franco), Wheal Franco Consols, Horrabridge, West Devon, Devon, England, UK


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Wheal Franco (New Wheal Franco; Old Wheal Franco), Wheal Franco Consols, Horrabridge, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:690653
Long-form Identifier:1:3:690653:5
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
1.7km (1.1 miles) ⓘNorth Roborough Down Mine, Horrabridge, West Devon, Devon, England, UK
3.5km (2.2 miles) ⓘVirtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
3.8km (2.3 miles) ⓘLittle Duke Mine (North Tavy Mine), Gulworthy, West Devon, Devon, England, UK
5.1km (3.2 miles) ⓘBedford Consols, Gulworthy, West Devon, Devon, England, UK
5.9km (3.7 miles) ⓘHarewood Consols, Harewood, Calstock, Cornwall, England, UK
6.0km (3.7 miles) ⓘEast Wheal Russell, Gulworthy, West Devon, Devon, England, UK
6.2km (3.8 miles) ⓘKit Tin Mine (Ringmoor Down Mine), Sheepstor, West Devon, Devon, England, UK
6.4km (4.0 miles) ⓘOkel Tor Mine, Harewood, Calstock, Cornwall, England, UK
6.6km (4.1 miles) ⓘBlack Tor Tin Pits, Princetown, Dartmoor Forest, West Devon, Devon, England, UK
7.0km (4.3 miles) ⓘRussell United Mine (incl. Wheal Russell), Gulworthy, West Devon, Devon, England, UK
References
Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386
 
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