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Malachite from
Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Malachite | |
| Formula: | Cu2(CO3)(OH)2 | |
| Comments: | Bridges et al. (2011): "Excellent specimens of malachite have long been known from Roughton Gill Mine (Greg and Lettsom, 1858; Goodchild, 1884). Cooper and Stanley (1990) note that it was an important ore. It remains abundant in specimen material and it is interesting to note that several of the specimens examined appear to be iron stained brecciated quartz and metasomatised rock cemented by malachite, which may be small examples of malachite as an ore. In cavities, it is common as mats of fibrous needles a few millimetres high which can cover areas over 10 cm across and botryoidal encrustations of similar size. Aggregates of radiating bright emerald green needles reach 10 mm in length in some cavities and small blocky crystals also occur. By far the commonest associated minerals are cerussite and hemimorphite." | |
| Habit: | fibrous; acicular; botryoidal encrustations | |
| Colour: | emerald green | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Associated Minerals Based on Photo Data: | ||
| Quartz | 11 | |
| Chalcopyrite | 4 | |
| Sphalerite | 3 | |
| Cuprite | 2 | |
| Cerussite | 2 | |
| Limonite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Malachite data | |
| Locality Data: | Click here to view Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| Photo Gallery | View Gallery (5 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 16837 | |
| Long-form Identifier: | 1:3:16837:7 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Malachite | ||
| 0.1km (0.0 miles) | ⓘRoughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.3km (0.2 miles) | ⓘTodd Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.3km (0.2 miles) | ⓘMexico Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.4km (0.2 miles) | ⓘIron Crag, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.4km (0.3 miles) | ⓘSilver Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.6km (0.4 miles) | ⓘThief Gills, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.6km (0.4 miles) | ⓘHigher Roughton Gill (Balliway Rigg), Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.8km (0.5 miles) | ⓘRed Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 0.9km (0.5 miles) | ⓘSwinburn Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| 1.1km (0.7 miles) | ⓘWet Smale Gill, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK | |
| References | ||
Roughton Gill Mine, Roughton Gill, Caldbeck, Allerdale, Cumbria, England, UK