| Locality type: | Quarry |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Bom Sucesso No. 4 quarry, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1010513 |
| Long-form Identifier: | 1:3:1010513:7 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Opal |
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| 8.7km (5.4 miles) | ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal |
| 12.5km (7.8 miles) | ⓘRomãs quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 12.8km (8.0 miles) | ⓘGralheira Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 15.0km (9.3 miles) | ⓘFonte Limeira quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 21.1km (13.1 miles) | ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal |
| 24.4km (15.2 miles) | ⓘPenedo da Cabeça quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal |
| 24.5km (15.2 miles) | ⓘRatoeira quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal |
| 41.3km (25.7 miles) | ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal |
| 61.9km (38.5 miles) | ⓘPortugal 1 & 2 quarries, Malpartida, Malpartida e Vale de Coelha, Almeida, Guarda, Portugal |
| 72.5km (45.1 miles) | ⓘPalhal Mine, Branca, Albergaria-a-Velha, Aveiro, Portugal |
| References |
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Bom Sucesso No. 4 quarry, Tavares, Mangualde, Viseu, Portugal