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
Gelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK


Locality type:Colliery
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Dolomite1
Siderite1
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Gelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:68170
Long-form Identifier:1:3:68170:8
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
3.4km (2.1 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
5.5km (3.4 miles) ⓘWyndham Colliery, Nant-y-moel, Bridgend, Wales, UK
8.6km (5.3 miles) ⓘInternational Colliery, Blaengarw, Bridgend, Wales, UK
9.8km (6.1 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
12.0km (7.5 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
12.8km (7.9 miles) ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK
13.3km (8.2 miles) ⓘUniversal Colliery, Senghenydd, Caerphilly, Wales, UK
14.7km (9.1 miles) ⓘBute Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
14.8km (9.2 miles) ⓘMwyndy Mine, Llantrisant, Rhondda Cynon Taf, Wales, UK
15.2km (9.4 miles) ⓘHendy Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
References
Ian Jones Collection. Siegenite, dolomite and dickite confirmed by XRD at the National Museum of Wales
 
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