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
Rhiwsaeson (Gwern Efa), Llantrisant, Rhondda Cynon Taf, Wales, UK


Classification
Species:Calcite
Formula:CaCO3
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Rhiwsaeson (Gwern Efa), Llantrisant, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:46631
Long-form Identifier:1:3:46631:2
GUID (UUID V4):0
Nearest other occurrences of Calcite
1.2km (0.8 miles) ⓘA4119 roadcutting, Llantrisant, Rhondda Cynon Taf, Wales, UK
1.6km (1.0 miles) ⓘHendy Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
2.5km (1.6 miles) ⓘCregiau Quarry, Pentyrch, Cardiff, Wales, UK
4.8km (3.0 miles) ⓘLlanharry Mine, Llanharry, Rhondda Cynon Taf, Wales, UK
5.2km (3.2 miles) ⓘTon Mawr Quarry, Pentyrch, Cardiff, Wales, UK
5.4km (3.4 miles) ⓘGarth Mine (Little Garth Mine), Pentyrch, Cardiff, Wales, UK
5.9km (3.7 miles) ⓘTaff's Well Quarry, Pentyrch, Cardiff, Wales, UK
6.5km (4.0 miles) ⓘCastell Coch Quarry, Tongwynlais, Cardiff, Wales, UK
7.6km (4.7 miles) ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK
8.5km (5.3 miles) ⓘBlaengwynlais Quarry, Tongwynlais, Cardiff, Wales, UK
References
 
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