| Locality type: | Quarry |
| Classification |
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| Species: | Orthoclase |
| Formula: | K(AlSi3O8) |
| Comments: | Probably microcline. |
| Confirmation |
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| Validity: | Unconfirmed/Questioned |
| Associated Minerals Based on Photo Data: |
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| Quartz | 9 |
| - var Smoky Quartz | 9 |
| Muscovite | 3 |
| Albite | 3 |
| Fluorapatite | 3 |
| Bertrandite | 1 |
| Autunite | 1 |
| Opal | 1 |
| - var Opal-AN | 1 |
| Apatite | 1 |
| Data |
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| Mineral Data: | Click here to view Orthoclase data |
| Locality Data: | Click here to view Nossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal |
| Photo Gallery | View Gallery (14 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 228772 |
| Long-form Identifier: | 1:3:228772:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Orthoclase |
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| 2.4km (1.5 miles) | ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal |
| 5.2km (3.2 miles) | ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal |
| 6.6km (4.1 miles) | ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal |
| 7.0km (4.3 miles) | ⓘCova da Raposa Mine, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal |
| 10.4km (6.5 miles) | ⓘVenturinha, Sezures, Penalva do Castelo, Viseu, Portugal |
| 13.7km (8.5 miles) | ⓘRomãs quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 14.9km (9.2 miles) | ⓘCorfel Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 15.5km (9.7 miles) | ⓘCompanheiro No. 3 quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 16.7km (10.4 miles) | ⓘGralheira Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal |
| 18.1km (11.3 miles) | ⓘMelo e Nabais, Gouveia, Guarda, Portugal |
| References |
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Nossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal