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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Marcasite from
Cyffty Mine, Capel Curig, Conwy, Wales, UK


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Cyffty Mine, Capel Curig, Conwy, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18208
Long-form Identifier:1:3:18208:5
GUID (UUID V4):0
Nearest other occurrences of Marcasite
1.3km (0.8 miles) ⓘHafna Mine, Trefriw, Conwy, Wales, UK
2.0km (1.2 miles) ⓘParc Mine, Trefriw, Conwy, Wales, UK
15.9km (9.9 miles) ⓘTrecastell Mine (Llangelynin Mine), Henryd, Conwy, Wales, UK
16.3km (10.1 miles) ⓘBritannia Mine, Beddgelert, Gwynedd, Wales, UK
20.6km (12.8 miles) ⓘBwlch Mine, Conwy, Conwy, Wales, UK
24.3km (15.1 miles) ⓘOld Mine, Great Orme, Llandudno, Conwy, Wales, UK
30.7km (19.1 miles) ⓘGwynfynydd Mine, Ganllwyd, Gwynedd, Wales, UK
41.4km (25.7 miles) ⓘDolgellau, Gwynedd, Wales, UK
45.8km (28.5 miles) ⓘParys Mountain Mines, Amlwch, Isle of Anglesey, Wales, UK
48.7km (30.3 miles) ⓘEsclusham Mountain, Esclusham, Wrexham, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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