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
Abercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK


08725630017368913929349.jpg
Sphalerite

Abercynon Colliery, Abercynon, Rhondda Cynon Taf, Wales, UK
08725630017368913929349.jpg
Sphalerite

Abercynon Colliery, Abercynon, Rhondda Cynon Taf, Wales, UK
03417630017272035431470.jpg
Sphalerite

Abercynon Colliery, Abercynon, Rhondda Cynon Taf, Wales, UK
Locality type:Colliery
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Abercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:17709
Long-form Identifier:1:3:17709:2
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
3.6km (2.2 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
5.9km (3.7 miles) ⓘWindsor Colliery, Abertridwr, Caerphilly, Wales, UK
6.9km (4.3 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
8.8km (5.5 miles) ⓘCwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK
9.0km (5.6 miles) ⓘBargoed Colliery, Bargoed, Caerphilly, Wales, UK
9.8km (6.1 miles) ⓘGelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
10.7km (6.7 miles) ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK
11.2km (7.0 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
11.3km (7.0 miles) ⓘMarkham Colliery, Markham, Caerphilly, Wales, UK
11.4km (7.1 miles) ⓘCambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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