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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Chalcopyrite from
Cregiau Quarry, Pentyrch, Cardiff, Wales, UK


Locality type:Quarry
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Cregiau Quarry, Pentyrch, Cardiff, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:82055
Long-form Identifier:1:3:82055:6
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
2.8km (1.7 miles) ⓘMwyndy Mine, Llantrisant, Rhondda Cynon Taf, Wales, UK
3.4km (2.1 miles) ⓘTaff's Well Quarry, Pentyrch, Cardiff, Wales, UK
3.6km (2.3 miles) ⓘBute Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
3.6km (2.3 miles) ⓘHendy Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
9.5km (5.9 miles) ⓘUniversal Colliery, Senghenydd, Caerphilly, Wales, UK
10.1km (6.3 miles) ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK
10.7km (6.7 miles) ⓘLlanbradach Colliery, Llanbradach, Caerphilly, Wales, UK
12.5km (7.8 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
15.5km (9.6 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
15.7km (9.7 miles) ⓘMachen quarry, Machen, Caerphilly, Wales, UK
References
Ian Jones or national Museum of Wales collections
 
and/or  
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