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Tetrahedrite Subgroup from
Barlocco Mine, Dumfries and Galloway, Scotland, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | 'Tetrahedrite Subgroup' (not an IMA approved species) | |
| Formula: | Cu6(Cu4C22+)Sb4S12S | |
| Comments: | Five specimens were analysed by Stephen Moreton in 2026 using SEM-EDS. Two gave Sb > As, so were tetrahedrite. Two gave As > Sb, so were tennantite. One gave Sb = As, placing it in the middle of the series. All look the same visually, as disseminations in quartz. | |
| Confirmation | ||
| Validity: | Confirmed | |
| Confirmation Methods: | SEM-EDS | |
| Associated Minerals Based on Photo Data: | ||
| Calcite | 1 | |
| Quartz | 1 | |
| Data | ||
| Mineral Data: | Click here to view Tetrahedrite Subgroup data | |
| Locality Data: | Click here to view Barlocco Mine, Dumfries and Galloway, Scotland, UK | |
| Photo Gallery | View Gallery (2 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 26536 | |
| Long-form Identifier: | 1:3:26536:0 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Tetrahedrite Subgroup | ||
| 42.1km (26.1 miles) | ⓘEmbleton Quarry, Embleton, Allerdale, Cumbria, England, UK | |
| 49.5km (30.8 miles) | ⓘScar Crags, Coledale, Above Derwent, Allerdale, Cumbria, England, UK | |
| 52.6km (32.7 miles) | ⓘGoldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK | |
| 52.9km (32.9 miles) | ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 52.9km (32.9 miles) | ⓘRoughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 53.0km (32.9 miles) | ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 54.4km (33.8 miles) | ⓘNether Row Brow, Caldbeck, Allerdale, Cumbria, England, UK | |
| 55.2km (34.3 miles) | ⓘOld Sandbed Mine, Caldbeck, Allerdale, Cumbria, England, UK | |
| 55.3km (34.3 miles) | ⓘDriggith Mine, Caldbeck, Allerdale, Cumbria, England, UK | |
| 55.3km (34.4 miles) | ⓘCarrock Mine, Mungrisdale, Eden, Cumbria, England, UK | |
| References | ||
Barlocco Mine, Dumfries and Galloway, Scotland, UK