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Chalcopyrite from
Frongoch Mine (Bron-y-Goch Mine; Llawynwnwch Mine), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion (Dyfed; Cardiganshire), Wales, UK

Description
Comments:Veinlets to 5mm wide, very rare part formed crystals to 2mm.
Habit:Massive, sphenoidal crystals
Colour:Dull brassy
UV Fluorescence:None
Quality of samples:Poor for species, only of interest for locality collectors. (#)
Rarity at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visual Identification
References
References:S Rust collection
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Frongoch Mine (Bron-y-Goch Mine; Llawynwnwch Mine), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion (Dyfed; Cardiganshire), Wales, UK
Mineral and/or Locality
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