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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Siderite from
Cambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK


Locality type:Colliery
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Galena1
Chalcopyrite1
Millerite1
Sphalerite1
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Cambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:88702
Long-form Identifier:1:3:88702:9
GUID (UUID V4):0
Nearest other occurrences of Siderite
1.9km (1.2 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
2.4km (1.5 miles) ⓘGelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
3.1km (1.9 miles) ⓘWestern Colliery, Nant-y-moel, Bridgend, Wales, UK
3.5km (2.2 miles) ⓘWyndham Colliery, Nant-y-moel, Bridgend, Wales, UK
3.7km (2.3 miles) ⓘDare Colliery, Cwmparc, Rhondda Cynon Taf, Wales, UK
3.8km (2.3 miles) ⓘPenllwyngwent Colliery, Wyndham, Bridgend, Wales, UK
4.0km (2.5 miles) ⓘParc Colliery (Park), Cwmparc, Rhondda Cynon Taf, Wales, UK
5.6km (3.5 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
6.9km (4.3 miles) ⓘHafod Pit (Colliery), Trehafod, Rhondda Cynon Taf, Wales, UK
7.0km (4.4 miles) ⓘInternational Colliery, Blaengarw, Bridgend, Wales, UK
References
 
and/or  
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