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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Brochantite from
Cythfartha Mine, Penegoes, Powys, Wales, UK


Locality type:Mine
Classification
Species:Brochantite
Formula:Cu4(SO4)(OH)6
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Brochantite data
Locality Data:Click here to view Cythfartha Mine, Penegoes, Powys, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:1027200
Long-form Identifier:1:3:1027200:4
GUID (UUID V4):0
Nearest other occurrences of Brochantite
1.9km (1.2 miles) ⓘDyfngwm mine, Penegoes, Powys, Wales, UK
2.2km (1.4 miles) ⓘPenycrocben, Penegoes, Powys, Wales, UK
2.9km (1.8 miles) ⓘDylife Mine (Pen Dylife Mine; Esgairgaled Mine; Llechwedd Ddu Mine; Blaen Twymyn Mine), Dylife, Machynlleth, Powys, Wales, UK
9.1km (5.6 miles) ⓘGeufron Mine, Llanidloes, Powys, Wales, UK
10.1km (6.3 miles) ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
10.3km (6.4 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
10.4km (6.5 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
10.7km (6.7 miles) ⓘHenfwlch Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
12.7km (7.9 miles) ⓘYstrad Einion Mine (Dolgoch Mine), Furnace, Ysgubor-y-coed, Ceredigion, Wales, UK
16.2km (10.1 miles) ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK
References
Render, Paul (n.d.) Paul Render Collection.
 
and/or  
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