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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Calcite from
Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK


00507150017368489677829.jpg
Calcite, etc.

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
03116750017272024387176.jpg
Calcite

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
00507150017368489677829.jpg
Calcite, etc.

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
03116750017272024387176.jpg
Calcite

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
00507150017368489677829.jpg
Calcite, etc.

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
03116750017272024387176.jpg
Calcite

Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
Locality type:Open-Cast Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Ankerite3
Chalcopyrite2
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Nant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:82047
Long-form Identifier:1:3:82047:7
GUID (UUID V4):0
Nearest other occurrences of Calcite
2.4km (1.5 miles) ⓘDyffryn Cellwen coal workings, Onllwyn, Neath Port Talbot, Wales, UK
17.1km (10.6 miles) ⓘNeath Abbey Copper Smelter, Neath, Neath Port Talbot, Wales, UK
19.4km (12.0 miles) ⓘParc Colliery (Park), Cwmparc, Rhondda Cynon Taf, Wales, UK
20.9km (13.0 miles) ⓘVaynor Quarry, Trefechan, Merthyr Tydfil, Wales, UK
25.3km (15.7 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
31.2km (19.4 miles) ⓘMumbles Iron Mine, Oystermouth, Mumbles, Swansea, Wales, UK
31.9km (19.8 miles) ⓘTy Coch Mine, Porthcawl, Bridgend, Wales, UK
33.4km (20.8 miles) ⓘNantymwyn Mine (Cerrigmeyn Mine), Rhandirmwyn, Llandovery, Carmarthenshire, Wales, UK
33.6km (20.9 miles) ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK
34.4km (21.4 miles) ⓘTalachddu Mine, Talachddu, Felin-fach (Felinfach), Powys, Wales, UK
References
 
and/or  
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