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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Pyrite from
Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK


09514940017370728144609.jpg
Pyrite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
09514940017370728144609.jpg
Pyrite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
03729880017272036313383.jpg
Pyrite, etc.

Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Comments:Minor sulphide in xls to 1mm
Habit:Veinlets, cubes
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Confirmed
Confirmation Methods:Optical Analysis
Associated Minerals Based on Photo Data:
Marcasite2
Susannite1
Bechererite1
Linarite1
Quartz1
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:17227
Long-form Identifier:1:3:17227:3
GUID (UUID V4):0
Nearest other occurrences of Pyrite
2.1km (1.3 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
2.5km (1.6 miles) ⓘCamdwrbach Mine (Cambrian South Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
3.4km (2.1 miles) ⓘHafan Mine (Canninog Mine; Bwlch Canninog Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
3.7km (2.3 miles) ⓘYstrad Einion Mine (Dolgoch Mine), Furnace, Ysgubor-y-coed, Ceredigion, Wales, UK
3.7km (2.3 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
5.1km (3.2 miles) ⓘBwlch Ystyllen Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
5.5km (3.4 miles) ⓘTy-newydd Mine, Bontgoch, Trefeirig, Ceredigion, Wales, UK
6.2km (3.9 miles) ⓘCwmbyr Mine, Penegoes, Powys, Wales, UK
6.4km (4.0 miles) ⓘDolclettwr Mine (Treddol Mine), Tre'r-ddol, Llangynfelyn, Ceredigion, Wales, UK
6.5km (4.0 miles) ⓘLlawr-y-cwm-bach Mine, Bontgoch, Trefeirig, Ceredigion, Wales, UK
References
Rust, S. A., Mason, J. S. (1988) The Minerals of Esgair Hir Mine, Bwlch-y-Esgair Hir, Ceulanymaesmawr, Dyfed, Wales . UK Journal of Mines and Minerals 5, 35-43
 
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