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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Pyrrhotite from
Alva Silver Mine, Silver Glen, Alva, Clackmannanshire, Scotland, UK


Locality type:Mine
Classification
Species:Pyrrhotite
Formula:Fe1-xS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Alva Silver Mine, Silver Glen, Alva, Clackmannanshire, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:43357
Long-form Identifier:1:3:43357:2
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
27.4km (17.0 miles) ⓘKeltie Burn, Perth and Kinross, Scotland, UK
31.7km (19.7 miles) ⓘSma Glen, Glen Quaich (Glen Coich), Perth and Kinross, Scotland, UK
39.1km (24.3 miles) ⓘGlen Almond, Meall nan Oighreag, Perth and Kinross, Scotland, UK
40.3km (25.0 miles) ⓘCorrie Buie veins, Meall nan Oighreag, Perth and Kinross, Scotland, UK
42.7km (26.5 miles) ⓘFinglen Vein, Stirling, Scotland, UK
43.2km (26.8 miles) ⓘGlen Quaich [2], Perth and Kinross, Scotland, UK
47.7km (29.6 miles) ⓘCalliachar Burn, Aberfeldy, Perth and Kinross, Scotland, UK
48.5km (30.1 miles) ⓘUrlar Burn, Aberfeldy, Perth and Kinross, Scotland, UK
53.3km (33.1 miles) ⓘTombuie, Loch Tay, Perth and Kinross, Scotland, UK
57.3km (35.6 miles) ⓘFoss West Mine, Aberfeldy, Perth and Kinross, Scotland, UK
References
[J.Russell Soc 1998:23]
 
and/or  
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