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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Dolomite from
Machen quarry, Machen, Caerphilly, Wales, UK


Locality type:Quarry
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Baryte2
Calcite1
Goethite1
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Machen quarry, Machen, Caerphilly, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:35133
Long-form Identifier:1:3:35133:9
GUID (UUID V4):0
Nearest other occurrences of Dolomite
3.3km (2.1 miles) ⓘMaen Llwyd, Caerphilly, Wales, UK
4.9km (3.1 miles) ⓘBedwas Colliery, Bedwas, Caerphilly, Wales, UK
12.6km (7.9 miles) ⓘTaff's Well Quarry, Pentyrch, Cardiff, Wales, UK
13.0km (8.1 miles) ⓘBargoed Colliery, Bargoed, Caerphilly, Wales, UK
13.2km (8.2 miles) ⓘTon Mawr Quarry, Pentyrch, Cardiff, Wales, UK
15.1km (9.4 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
15.5km (9.6 miles) ⓘAbercynon Colliery (Dowlais Cardiff), Abercynon, Rhondda Cynon Taf, Wales, UK
19.7km (12.2 miles) ⓘBig Pit (Colliery), Blaenavon, Torfaen, Wales, UK
21.4km (13.3 miles) ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK
22.4km (13.9 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
References
 
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