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
Windsor Colliery, Abertridwr, Caerphilly, Wales, UK


06187050017371897929072.jpg
Sphalerite, etc.

Windsor Colliery, Abertridwr, Caerphilly, Wales, UK
06187050017371897929072.jpg
Sphalerite, etc.

Windsor Colliery, Abertridwr, Caerphilly, Wales, UK
08249250017272722775993.jpg
Sphalerite, etc.

Windsor Colliery, Abertridwr, Caerphilly, Wales, UK
Locality type:Colliery
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Siderite1
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Windsor Colliery, Abertridwr, Caerphilly, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:68142
Long-form Identifier:1:3:68142:5
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
5.9km (3.7 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
7.9km (4.9 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
9.3km (5.8 miles) ⓘRhiwsaeson (Gwern Efa), Llantrisant, Rhondda Cynon Taf, Wales, UK
10.2km (6.3 miles) ⓘRhyd-y-Gwern Mine, Draethen, Caerphilly, Wales, UK
10.6km (6.6 miles) ⓘBute Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
10.8km (6.7 miles) ⓘBargoed Colliery, Bargoed, Caerphilly, Wales, UK
10.9km (6.8 miles) ⓘMachen quarry, Machen, Caerphilly, Wales, UK
11.0km (6.8 miles) ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK
12.2km (7.6 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
13.0km (8.1 miles) ⓘMarkham Colliery, Markham, Caerphilly, Wales, UK
References
Ian Jones collection. Aragonite confirmed by XRD at the National Museum of Wales
 
and/or  
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