| | Description | |
| Comments: | Crusts of minute emerald green xls (XRD), associated with linarite, langite, wroewolfeite, lautenthalite. | | Habit: | Drusey crystals | | Colour: | Emerald green | | UV Fluorescence: | None | | Quality of samples: | Poor for species, only of interest for locality collectors. (#) | | Rarity at site: | Rare | | Confirmation | |
| Validity: | Confirmed | | Confirmation Methods: | Infrared Spectroscopy
| | References | |
| References: | UKJMM 17 | | Associated minerals: | |
| Associates: | Anglesite
Caledonite
Cerussite
Chalcocite
Covellite
Langite
Lautenthalite
Linarite
Quartz
Ramsbeckite
Schulenbergite
Wroewolfeite
| | Data | |
| Mineral Data: | Click here to view Brochantite 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 |
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