| Locality type: | Pit |
| Classification |
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| Commodity: | Clay (commodity) |
| Data |
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| Commodity Data: | Click here to view Clay (commodity) data |
| Locality Data: | Click here to view Trethosa China Clay Pit, Treviscoe, St Stephen-in-Brannel, Cornwall, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1204130 |
| Long-form Identifier: | 1:3:1204130:1 |
| GUID (UUID V4): | 01602f94-5da4-4008-b813-2dff2ae6eb26 |
| Nearest other deposits of Clay (commodity) |
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| 0.4km (0.2 miles) | ⓘGoonvean China Clay Pit, Treviscoe, St Stephen-in-Brannel, Cornwall, England, UK |
| 0.6km (0.4 miles) | ⓘLittle Treviscoe China Clay Pit (Treviscoe China Clay Works), Treviscoe, St Stephen-in-Brannel, Cornwall, England, UK |
| 1.0km (0.6 miles) | ⓘVirginia China Clay Pit, Melbur, St Stephen-in-Brannel, Cornwall, England, UK |
| 1.3km (0.8 miles) | ⓘRostowrack China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK |
| 1.7km (1.1 miles) | ⓘParkandillick China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK |
| 1.8km (1.1 miles) | ⓘHendra China Clay Pit, Hendra Downs, St Dennis, Cornwall, England, UK |
| 2.1km (1.3 miles) | ⓘMelbur China Clay Pit, Melbur, St Stephen-in-Brannel, Cornwall, England, UK |
| 3.0km (1.8 miles) | ⓘWheal Remfry China Clay Pit, Fraddon, St Enoder, Cornwall, England, UK |
| 3.1km (1.9 miles) | ⓘOld Pound China Clay Pit, Currian Vale, St Stephen-in-Brannel, Cornwall, England, UK |
| 3.3km (2.1 miles) | ⓘGothers China Clay Pit, Whitemoor, St Stephen-in-Brannel, Cornwall, England, UK |
| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | inclusions in topaz for greisenisation and mineralisation in the Hensbarrow topaz granite, Cornwall, England...inclusions in topaz from greisens in the Hensbarrow topaz granite stock (St. Austell, Cornwall) are used...[(Fe+2,Mn+2)2(Nb,Ta)2W+6O10]. Primary L + V inclusions in topaz show relatively high Th (mainly 300 to >500...(23–30 wt % NaCl equivalent) compared with those in greisen quartz (150–450 °C, 0–50 wt % NaCl equivalent)...greisenisation, mixing with meteoric waters and a decrease in pressure causing intermittent boiling. The presence |
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