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
Ferndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK


Locality type:Pit
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Ferndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:68159
Long-form Identifier:1:3:68159:5
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
3.4km (2.1 miles) ⓘGelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
3.9km (2.4 miles) ⓘCwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK
5.6km (3.5 miles) ⓘCambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
6.4km (4.0 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
6.9km (4.3 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
8.8km (5.5 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
8.8km (5.5 miles) ⓘWyndham Colliery, Nant-y-moel, Bridgend, Wales, UK
10.0km (6.2 miles) ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK
11.8km (7.3 miles) ⓘInternational Colliery, Blaengarw, Bridgend, Wales, UK
12.2km (7.6 miles) ⓘWindsor Colliery, Abertridwr, Caerphilly, Wales, UK
References
Ian Jones collection
 
and/or  
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