| Locality type: | Mine |
| Classification |
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| Species: | Chalcocite |
| Formula: | Cu2S |
| Habit: | Massive, veinlets |
| Colour: | Metallic grey |
| Luminescent properties: | None |
| Quality for species: | Rock forming mineral/non-crystalline/little interest for 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 Chalcocite data |
| Locality Data: | Click here to view Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 15375 |
| Long-form Identifier: | 1:3:15375:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Chalcocite |
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| 1.0km (0.6 miles) | ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK |
| 6.8km (4.2 miles) | ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 7.7km (4.8 miles) | ⓘCamdwrbach Mine (Cambrian South Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 8.1km (5.1 miles) | ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
| 9.2km (5.7 miles) | ⓘYstrad Einion Mine (Dolgoch Mine), Furnace, Ysgubor-y-coed, Ceredigion, Wales, UK |
| 11.2km (6.9 miles) | ⓘFrongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
| 17.1km (10.6 miles) | ⓘCythfartha Mine, Penegoes, Powys, Wales, UK |
| 19.2km (11.9 miles) | ⓘPenycrocben, Penegoes, Powys, Wales, UK |
| 22.4km (13.9 miles) | ⓘAberdaunant Mine, Llanidloes, Powys, Wales, UK |
| 30.9km (19.2 miles) | ⓘRhiwnant Mine, Rhayader, Powys, Wales, UK |
| References |
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