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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Covellite from
Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK


Locality type:Mine
Classification
Species:Covellite
Formula:CuS
Comments:Replacement of galena & chalcopyrite.
Habit:Thin platy
Colour:Dark metallic blue
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Schmiederite2
Caledonite1
Hemimorphite1
Data
Mineral Data:Click here to view Covellite data
Locality Data:Click here to view Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:39319
Long-form Identifier:1:3:39319:5
GUID (UUID V4):0
Nearest other occurrences of Covellite
4.6km (2.8 miles) ⓘPenrhiw Mine (Penyberth Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
8.2km (5.1 miles) ⓘCwmystwyth Mine, Cwmystwyth, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
8.3km (5.2 miles) ⓘBwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
11.2km (6.9 miles) ⓘLlechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
14.9km (9.2 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
16.9km (10.5 miles) ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
21.2km (13.2 miles) ⓘNant-y-Car Mine, Rhayader, Powys, Wales, UK
22.8km (14.1 miles) ⓘDyfngwm mine, Penegoes, Powys, Wales, UK
24.0km (14.9 miles) ⓘDylife Mine (Pen Dylife Mine; Esgairgaled Mine; Llechwedd Ddu Mine; Blaen Twymyn Mine), Dylife, Machynlleth, Powys, Wales, UK
45.5km (28.2 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
References
Green, D.I., Rust, S.A., Mason, J.S. (1996) Classic British mineral localities: Frongoch mine, Dyfed. UK Journal of Mines and Minerals 17, Rockbottom Publications. 29-39
Rust, Steve A. (2019) Minerals of the Frongoch Mine. Published by the author, 180 pages. ISBN 978-1-9162641-0-6.
 
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