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Muscovite from
Bryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Muscovite | |
| Formula: | KAl2(AlSi3O10)(OH)2 | |
| Comments: | Off white crystal rossets to 1mm, commly staind yellow and red by Fe oxides. | |
| Habit: | Thin platy rossets | |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) | |
| Abundance at site: | Rare | |
| Confirmation | ||
| Validity: | Confirmed | |
| Confirmation Methods: | Visually Identified | |
| Data | ||
| Mineral Data: | Click here to view Muscovite data | |
| Locality Data: | Click here to view Bryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 39043 | |
| Long-form Identifier: | 1:3:39043:5 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Muscovite | ||
| 7.2km (4.5 miles) | ⓘCastell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgair Lle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK | |
| 11.9km (7.4 miles) | ⓘDyfngwm mine, Penegoes, Powys, Wales, UK | |
| 50.7km (31.5 miles) | ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK | |
| 57.7km (35.8 miles) | ⓘDolyhir Quarry, Old Radnor, Powys, Wales, UK | |
| 59.4km (36.9 miles) | ⓘLlechwedd slate quarry, Ffestiniog, Gwynedd, Wales, UK | |
| 73.8km (45.8 miles) | ⓘLlandybie (Llandebie), Carmarthenshire, Wales, UK | |
| 84.6km (52.5 miles) | ⓘCefn Coed Colliery, Crynant, Neath Port Talbot, Wales, UK | |
| 84.8km (52.7 miles) | ⓘTal y Fan, Caerhun, Conwy, Wales, UK | |
| References | ||
