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
Prince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, 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 Prince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18687
Long-form Identifier:1:3:18687:8
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
9.9km (6.2 miles) ⓘCwmorthin Quarry, Tanygrisiau, Ffestiniog, Gwynedd, Wales, UK
10.2km (6.3 miles) ⓘGwynfynydd Mine, Ganllwyd, Gwynedd, Wales, UK
13.2km (8.2 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
18.4km (11.4 miles) ⓘLliwedd Mine, Beddgelert, Gwynedd, Wales, UK
19.7km (12.3 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
20.6km (12.8 miles) ⓘFriar's Coat trial, Brithdir and Llanfachreth, Gwynedd, Wales, UK
20.9km (13.0 miles) ⓘVigra Mine, Llanelltyd, Gwynedd, Wales, UK
20.9km (13.0 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
21.6km (13.4 miles) ⓘGraigwen Mine (Nant-Goch Mine), Barmouth, Gwynedd, Wales, UK
24.8km (15.4 miles) ⓘDrws-y-Coed Mine (Drwy-y-Coed Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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