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
Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK


00457370017374682859278.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09186910017272020546289.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09931310017272020557497.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
00644940017272020572403.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
06206010017362115592301.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09186910017272020546289.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09931310017272020557497.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
00644940017272020572403.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
03406110017374682856932.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09186910017272020546289.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
09931310017272020557497.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
00644940017272020572403.jpg
Calcite

Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
Locality type:Quarry
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Goethite19
Baryte14
Pyrite5
Dolomite4
Hematite4
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Ton Mawr Quarry, Pentyrch, Cardiff, Wales, UK
Photo GalleryView Gallery (63 photos)
Data Identifiers
Mindat Occurrence Record ID:20243
Long-form Identifier:1:3:20243:1
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.5km (0.3 miles) ⓘGarth Mine (Little Garth Mine), Pentyrch, Cardiff, Wales, UK
0.7km (0.4 miles) ⓘTaff's Well Quarry, Pentyrch, Cardiff, Wales, UK
1.3km (0.8 miles) ⓘCastell Coch Quarry, Tongwynlais, Cardiff, Wales, UK
2.7km (1.7 miles) ⓘCregiau Quarry, Pentyrch, Cardiff, Wales, UK
3.7km (2.3 miles) ⓘBlaengwynlais Quarry, Tongwynlais, Cardiff, Wales, UK
5.2km (3.2 miles) ⓘRhiwsaeson (Gwern Efa), Llantrisant, Rhondda Cynon Taf, Wales, UK
6.3km (3.9 miles) ⓘHendy Quarry, Llantrisant, Rhondda Cynon Taf, Wales, UK
6.4km (4.0 miles) ⓘA4119 roadcutting, Llantrisant, Rhondda Cynon Taf, Wales, UK
7.5km (4.7 miles) ⓘWindsor Colliery, Abertridwr, Caerphilly, Wales, UK
9.9km (6.2 miles) ⓘLlanharry Mine, Llanharry, Rhondda Cynon Taf, Wales, UK
References
Betts, John (n.d.) John Betts website listing.
 
and/or  
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