| Locality type: | Quarry |
| Classification |
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| Species: | Magnetite |
| Formula: | Fe2+Fe23+O4 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Magnetite data |
| Locality Data: | Click here to view Trewen Quarry, South Petherwin, Launceston, Cornwall, England, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 7275 |
| Long-form Identifier: | 1:3:7275:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Magnetite |
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| 3.8km (2.4 miles) | ⓘWheal Truscott, St Stephens By Launceston Rural, Launceston, Cornwall, England, UK |
| 4.7km (3.0 miles) | ⓘPolyphant Quarry, South Petherwin, Launceston, Cornwall, England, UK |
| 5.7km (3.6 miles) | ⓘGreystone Quarry, Lezant, Cornwall, England, UK |
| 7.3km (4.6 miles) | ⓘTreburland Manganese Mine (Treburland manganese deposits), Altarnun, Cornwall, England, UK |
| 26.5km (16.5 miles) | ⓘBarras Nose, Tintagel, Cornwall, England, UK |
| 29.2km (18.2 miles) | ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK |
| 29.8km (18.5 miles) | ⓘLanivet Consols (Tretoil Mine), Lanivet, Cornwall, England, UK |
| 34.3km (21.3 miles) | ⓘFowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK |
| 38.7km (24.0 miles) | ⓘTower Consols (Magnetic Iron Mine; incl. Wheal Click), Trezaise (Tresayes), Roche, Cornwall, England, UK |
| 45.9km (28.5 miles) | ⓘSt Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, Cornwall, England, UK |
| References |
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