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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Millerite from
Fforchaman Colliery, Cwmaman, Rhondda Cynon Taf, Wales, UK


Locality type:Colliery
Classification
Species:Millerite
Formula:NiS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Millerite data
Locality Data:Click here to view Fforchaman Colliery, Cwmaman, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:70046
Long-form Identifier:1:3:70046:5
GUID (UUID V4):0
Nearest other occurrences of Millerite
1.4km (0.9 miles) ⓘCwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK
3.7km (2.3 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
5.1km (3.2 miles) ⓘGelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
5.8km (3.6 miles) ⓘDare Colliery, Cwmparc, Rhondda Cynon Taf, Wales, UK
6.7km (4.2 miles) ⓘParc Colliery (Park), Cwmparc, Rhondda Cynon Taf, Wales, UK
7.4km (4.6 miles) ⓘCambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
8.5km (5.3 miles) ⓘMerthyr Tydfil, Merthyr Tydfil, Wales, UK
8.9km (5.5 miles) ⓘBritannic Merthyr Colliery, Gilfach Coch, Rhondda Cynon Taf, Wales, UK
8.9km (5.6 miles) ⓘHafod Pit (Colliery), Trehafod, Rhondda Cynon Taf, Wales, UK
9.1km (5.6 miles) ⓘWestern Colliery, Nant-y-moel, Bridgend, Wales, UK
References
National Museum of Wales collection
 
and/or  
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