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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Quartz from
Mynydd Gorddu Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Habit:Massive, and typical crystals
Colour:White-colourless
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals:
Associates:Bindheimite
Bottinoite
Cerussite
Chalcopyrite
Chrysocolla
Galena
Greenockite
Hemimorphite
Malachite
Pyromorphite
Sphalerite
Ullmannite
Wulfenite
Associated Minerals Based on Photo Data:
Ullmannite4
Bindheimite2
Chalcopyrite1
Bottinoite1
Pyromorphite1
Malachite1
Galena1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Mynydd Gorddu Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:19110
Long-form Identifier:1:3:19110:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.6km (0.4 miles) ⓘElgar Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK
1.2km (0.7 miles) ⓘPenycefn Mine, Bow Street, Tirymynach, Ceredigion, Wales, UK
1.2km (0.8 miles) ⓘCefn-gwyn Mine, Bontgoch, Trefeirig, Ceredigion, Wales, UK
2.0km (1.2 miles) ⓘLlechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
2.8km (1.7 miles) ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK
2.9km (1.8 miles) ⓘGwaith Yr Afon mine (West Cwmsymlog Mine; Cwm Daren Mine; River Mine; Taliesan Mine), Goginan, Trefeirig, Ceredigion, Wales, UK
2.9km (1.8 miles) ⓘCerrig Yr Wyn Mine (Cerrigyrwyn Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
3.0km (1.9 miles) ⓘTy-newydd Mine, Bontgoch, Trefeirig, Ceredigion, Wales, UK
3.0km (1.9 miles) ⓘCwmdaren Mine (Cwm Darren Mine; Lefel Gopor Mine; Copper Level Mine; Twll y Mwyn Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
3.3km (2.0 miles) ⓘDaren Mine (Old Daren Mine; Darren Consolidated Mine; Daren United Mine; Great Darren Mine; Darren Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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