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
Cwmorthin Quarry, Tanygrisiau, Ffestiniog, Gwynedd, Wales, UK


Locality type:Quarry
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 Cwmorthin Quarry, Tanygrisiau, Ffestiniog, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:107459
Long-form Identifier:1:3:107459:8
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
8.5km (5.3 miles) ⓘLliwedd Mine, Beddgelert, Gwynedd, Wales, UK
9.9km (6.2 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
15.3km (9.5 miles) ⓘDrws-y-Coed Mine (Drwy-y-Coed Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
15.4km (9.6 miles) ⓘSimdde Dylluan Mine (Talysarn Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
18.8km (11.7 miles) ⓘGwynfynydd Mine, Ganllwyd, Gwynedd, Wales, UK
21.6km (13.5 miles) ⓘCae Coch Mine, Trefriw, Conwy, Wales, UK
22.9km (14.3 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
26.2km (16.3 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
27.0km (16.8 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
27.1km (16.9 miles) ⓘVigra Mine, Llanelltyd, Gwynedd, Wales, UK
References
 
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