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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Sphalerite from
Princess Marina Mine (Bedd-y-Coedwr Mine; Beddcoedwr Mine), Ganllwyd, Gwynedd, Wales, UK


Locality type:Mine
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Princess Marina Mine (Bedd-y-Coedwr Mine; Beddcoedwr Mine), Ganllwyd, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:186253
Long-form Identifier:1:3:186253:9
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
0.2km (0.1 miles) ⓘCwmheisian East Mine, Ganllwyd, Gwynedd, Wales, UK
0.4km (0.3 miles) ⓘGwynfynydd Mine, Ganllwyd, Gwynedd, Wales, UK
5.6km (3.5 miles) ⓘCefn Coch Mine (incl. Berthlwyd Mine; New California Mine), Ganllwyd, Gwynedd, Wales, UK
6.7km (4.2 miles) ⓘCaegwernog Mine, Llanelltyd, Gwynedd, Wales, UK
9.7km (6.0 miles) ⓘPrince of Wales Mine (Hafod-y-Morfa Mine), Llanelltyd, Gwynedd, Wales, UK
10.1km (6.3 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
10.1km (6.3 miles) ⓘCambrian Mine (Taincynhauaf), Llanelltyd, Gwynedd, Wales, UK
10.2km (6.3 miles) ⓘGarthgell Mine, Llanelltyd, Gwynedd, Wales, UK
10.8km (6.7 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
11.1km (6.9 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
References
P.M. Allen, A.A. Jackson: "Geological Excursions in the Harlech Dome", BGS, 1985
 
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