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


Locality type:Mine
Classification
Species:Caledonite
Formula:Pb5Cu2(SO4)3(CO3)(OH)6
Comments:Light blue divergent xl groups to 2mm (XRD)(good micros. Associated with susannite, hemimorphite, cerussite, bechererite.
Habit:Prismatic, lath-like
Colour:Light Blue to light blue green
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Confirmation Details:Where Tested and Reference ID: NHM London
Associated Minerals Based on Photo Data:
Susannite21
Linarite6
Anglesite5
Hemimorphite3
Brochantite3
Quartz3
Bechererite3
Cerussite3
Mattheddleite3
Opal1
Cuprite1
Wroewolfeite1
Steverustite1
Covellite1
Unnamed (Cu-Pb Sulfate)1
Leadhillite1
Chalcopyrite1
Data
Mineral Data:Click here to view Caledonite 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
Photo GalleryView Gallery (20 photos)
Data Identifiers
Mindat Occurrence Record ID:15212
Long-form Identifier:1:3:15212:7
GUID (UUID V4):0
Nearest other occurrences of Caledonite
2.1km (1.3 miles) Eaglebrook 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) Bryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
4.2km (2.6 miles) Bwlch Glas Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
6.9km (4.3 miles) Brynarian Mine (Cardigan Bay Consols Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
7.6km (4.7 miles) Penpontbren Mine (Penypontbren Mine; Penpombren Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
7.6km (4.7 miles) Penybanc Mine, Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
8.1km (5.1 miles) Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
9.2km (5.7 miles) Bwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
9.9km (6.2 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
 
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