| Locality type: | Mine |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | SEM-EDS |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Balança Mine, Alcaria Ruiva, Mértola, Beja, Portugal |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1097023 |
| Long-form Identifier: | 1:3:1097023:0 |
| GUID (UUID V4): | a81eb5ec-0a7d-47a0-93b7-dc2daa2749cb |
| References |
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| Reference Search (possible matching items) |
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 | | Book (volume) | | in France, Italy and Peru. BirdLife Partners in Portugal and Spain are looking at how IBAs might be identified...projects recognised in 2010 was SPEA' (BirdLife in Portugal) work for the recovery of Azores Bullfinch (Pyrrhula...their work in identifying marine IBAs in Spain and Portugal. Birds in the European Union: a status assessment(2004)...the conservation of the eight island endemics in Portugal and Spain. Overall, BirdLife found that the situation...to Central Asia, and 37 BirdLife Partners from Portugal to Kazakhstan and Cyprus to Finland participated |
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