| Locality type: | Mine |
| Classification |
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| Species: | Schorl |
| Formula: | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Schorl data |
| Locality Data: | Click here to view Gralheira Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 753025 |
| Long-form Identifier: | 1:3:753025:8 |
| GUID (UUID V4): | 5d5e5a0f-b829-41e3-a484-da9a30ea74f4 |
| Nearest other occurrences of Schorl |
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| 3.8km (2.4 miles) | ⓘFonte Limeira quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 4.9km (3.0 miles) | ⓘRomãs quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 11.7km (7.2 miles) | ⓘRatoeira quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal |
| 12.8km (8.0 miles) | ⓘBom Sucesso No. 4 quarry, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal |
| 14.2km (8.8 miles) | ⓘCorvaceira quarry, Castelo de Penalva, Penalva do Castelo, Viseu, Portugal |
| 14.9km (9.3 miles) | ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal |
| 16.7km (10.4 miles) | ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal |
| 17.5km (10.9 miles) | ⓘRoto-Bote quarry, Vila Franca da Serra, Gouveia, Guarda, Portugal |
| 22.6km (14.1 miles) | ⓘRochel, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal |
| 28.9km (18.0 miles) | ⓘSanta Luzia quarry, Campo, Viseu, Viseu, Portugal |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (article/letter/editorial) | | Stuttgart, August 2007, published online 2007 © by E. Schweizerbart’sche Verlagsbuchhandlung 2007 Crystal...metamorphic and metasomatic rocks from northern Portugal Ana M. R. Neiva, M. Manuela V. G. Silva and M...granitic rocks from Vieiros, Rebordelo, Jales-Gralheira and Paredes da BeiraPenedono is essentially chemically...rock. At Jales-Gralheira, tourmaline compositions record the differentiation sequence. Schorl from aplite...hydrothermal alteration of the pelitic country rock. Schorl and rare foitite in W±Sn-bearing quartz veins containing |  | | Conference Paper/Abstract | | METASOMATIC ROCKS FROM NORTHERN PORTUGAL. A. M. R. Neiva1, M. M. V. G. Silva1 and M. E. P. Gomes2, 1Department...Sciences, University of Coimbra, 3000 Coimbra, Portugal, neiva@ci.uc.pt, mmsilva@ci.uc.pt, 2Department...Trás-os-Montes e Alto Douro, 5000 Vila Real, Portugal, mgomes@utad.pt. At Vieiros, magmatic schorl from Sn-bearing...is unzoned, while metasomatic dravite and rare schorl from the contact metamorphosed mica schist adjacent...Hydrothermal dravite and schorl are richer in Mg, Mg/(Mg+Fe) and poorer in Fe than magmatic schorl. The Fe↔Mg substitution |
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