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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Arsenopyrite from
Vigra Mine, Llanelltyd, Gwynedd, Wales, UK


Locality type:Mine
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18716
Long-form Identifier:1:3:18716:9
GUID (UUID V4):0
Localities for Arsenopyrite in this Region
Trial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
Nearest other occurrences of Arsenopyrite
0.6km (0.4 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
1.3km (0.8 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
5.9km (3.6 miles) ⓘCaegwernog Mine, Llanelltyd, Gwynedd, Wales, UK
9.6km (6.0 miles) ⓘDolfrwnog Mine (incl. Turf Copper Mine), Ganllwyd, Gwynedd, Wales, UK
10.5km (6.5 miles) ⓘTyddyn Gwladys Mine, Ganllwyd, Gwynedd, Wales, UK
20.9km (13.0 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
21.9km (13.6 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
29.8km (18.5 miles) ⓘSygun Mine, Beddgelert, Gwynedd, Wales, UK
36.1km (22.4 miles) ⓘSimdde Dylluan Mine (Talysarn Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
36.2km (22.5 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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