| Locality type: | Mine |
| Classification |
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| Species: | Gypsum |
| Formula: | CaSO4 · 2H2O |
| Comments: | Crystals to 1mm. |
| Habit: | Prismatic |
| Colour: | Colourless-white |
| Quality for species: | Poor for species, only of interest for locality collectors. (#) |
| Abundance at site: | Rare |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals: |
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| Associates: | Quartz
Sphalerite
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| Data |
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| Mineral Data: | Click here to view Gypsum data |
| Locality Data: | Click here to view Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 39320 |
| Long-form Identifier: | 1:3:39320:1 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Gypsum |
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| 2.4km (1.5 miles) | ⓘGwaithgoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
| 4.0km (2.5 miles) | ⓘCwmrheidol Mine, Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK |
| 8.3km (5.2 miles) | ⓘGoginan Mine, Goginan, Melindwr, Ceredigion, Wales, UK |
| 20.3km (12.6 miles) | ⓘLodge Park Trial, Tre'r-ddol, Llangynfelyn, Ceredigion, 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 |
| 34.7km (21.5 miles) | ⓘOgofau Mine (Roman Deep Mine; Dolaucothi Mine; Cothy Mine), Pumpsaint, Carmarthenshire, Wales, UK |
| 42.2km (26.2 miles) | ⓘBrynycastell Mine, Dolgellau, Gwynedd, Wales, UK |
| 45.5km (28.2 miles) | ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK |
| 54.3km (33.8 miles) | ⓘDolyhir Quarry, Old Radnor, Powys, Wales, UK |
| 57.7km (35.9 miles) | ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK |
| References |
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