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
Cwm Colliery, Beddau, Llantwit Fardre, Rhondda Cynon Taf, Wales, UK


08278450017369365893406.jpg
Siderite

Cwm Colliery, Beddau, Llantwit Fardre, Rhondda Cynon Taf, Wales, UK
08278450017369365893406.jpg
Siderite

Cwm Colliery, Beddau, Llantwit Fardre, Rhondda Cynon Taf, Wales, UK
06504870017272037091068.jpg
Siderite

Cwm Colliery, Beddau, Llantwit Fardre, Rhondda Cynon Taf, Wales, UK
Locality type:Colliery
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Millerite5
Quartz3
Ozocerite1
- var Hatchettite1
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Cwm Colliery, Beddau, Llantwit Fardre, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:142003
Long-form Identifier:1:3:142003:6
GUID (UUID V4):0
Nearest other occurrences of Siderite
5.4km (3.3 miles) ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK
6.1km (3.8 miles) ⓘHafod Pit (Colliery), Trehafod, Rhondda Cynon Taf, Wales, UK
6.1km (3.8 miles) ⓘWindsor Colliery, Abertridwr, Caerphilly, Wales, UK
6.6km (4.1 miles) ⓘUniversal Colliery, Senghenydd, Caerphilly, Wales, UK
8.4km (5.2 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
9.2km (5.7 miles) ⓘLlanbradach Colliery, Llanbradach, Caerphilly, Wales, UK
9.3km (5.8 miles) ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK
10.4km (6.5 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
10.9km (6.8 miles) ⓘPenallta Colliery, Ystrad Mynach, Caerphilly, Wales, UK
11.3km (7.0 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
References
 
and/or  
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