| Locality type: | Mine |
| Classification |
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| Species: | Chalcopyrite |
| Formula: | CuFeS2 |
| Comments: | Veinlets to 5mm wide, very rare part formed crystals to 2mm with a black-grey surface alteration of an undefined copper sulphide. |
| Habit: | Massive, sphenoidal crystals |
| Colour: | Dull brassy |
| 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 |
| Data |
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| 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, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 39312 |
| Long-form Identifier: | 1:3:39312:2 |
| GUID (UUID V4): | 0999b419-2d8d-493a-85a1-83949d11d97c |
| Nearest other occurrences of Chalcopyrite |
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| 1.5km (0.9 miles) | ⓘRed Rock Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
| 3.3km (2.1 miles) | ⓘLogaulas Mine (Lisburne Mine; Logylas Mine), Lisburne Lead and Silver Mines, Ysbyty Ystwyth, Ceredigion, Wales, UK |
| 4.5km (2.8 miles) | ⓘBodcoll Mine (Gertrude Mine; South Wales Mine), Devil's Bridge, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
| 4.6km (2.8 miles) | ⓘPenrhiw Mine (Penyberth Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK |
| 4.6km (2.9 miles) | ⓘPen Lan-fach Mine, Ysbyty Ystwyth, Ceredigion, Wales, UK |
| 4.6km (2.9 miles) | ⓘGlogfawr Mine, Lisburne Lead and Silver Mines, Ysbyty Ystwyth, Ceredigion, Wales, UK |
| 4.7km (2.9 miles) | ⓘHendre Felen Mine (Hendre quarry), Ysbyty Ystwyth, Ceredigion, Wales, UK |
| 4.8km (3.0 miles) | ⓘBwlchgwyn Mine (Nanteos Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK |
| 5.5km (3.4 miles) | ⓘTemple Mine, Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK |
| 5.7km (3.5 miles) | ⓘLlwynmalus Mine (West Lisburn Mine), Ysbyty Ystwyth, Ceredigion, Wales, UK |
| References |
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