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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Tetrahedrite Subgroup from
Daren Mine (Old Daren Mine; Darren Consolidated Mine; Daren United Mine; Great Darren Mine; Darren Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK


01667420017371496952348.jpg
Tetrahedrite Subgroup

Daren Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
01667420017371496952348.jpg
Tetrahedrite Subgroup

Daren Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
01667420017371496952348.jpg
Tetrahedrite Subgroup

Daren Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:'Tetrahedrite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)Sb4S12S
Comments:Xls to 1.2cms.
Habit:Massive, complex crystals
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Optical Analysis
Data
Mineral Data:Click here to view Tetrahedrite Subgroup data
Locality Data:Click here to view Daren Mine (Old Daren Mine; Darren Consolidated Mine; Daren United Mine; Great Darren Mine; Darren Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18219
Long-form Identifier:1:3:18219:1
GUID (UUID V4):0
Nearest other occurrences of Tetrahedrite Subgroup
0.4km (0.2 miles) ⓘCwmdaren Mine (Cwm Darren Mine; Lefel Gopor Mine; Copper Level Mine; Twll y Mwyn Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
1.5km (0.9 miles) ⓘGoginan Mine, Goginan, Melindwr, Ceredigion, Wales, UK
1.8km (1.1 miles) ⓘCwmerfin Mine, Cwmerfyn, Trefeirig, Ceredigion, Wales, UK
2.1km (1.3 miles) ⓘCwmsymlog Mine (East Daren Mine; Gwaithddu Mine), Goginan, Trefeirig, Ceredigion, Wales, UK
2.4km (1.5 miles) ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK
2.7km (1.7 miles) ⓘBwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
37.1km (23.0 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
37.2km (23.1 miles) ⓘMoel Ispri, Llanelltyd, Gwynedd, Wales, UK
44.1km (27.4 miles) ⓘTyddyn Gwladys Mine, Ganllwyd, Gwynedd, Wales, UK
44.4km (27.6 miles) ⓘCoed-y-Brenin deposit, Ganllwyd, Gwynedd, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
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