| Locality type: | Mine |
| Classification |
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| Species: | Nontronite |
| Formula: | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Comments: | Visually identified by R. Vernet AFM (Jacques-Yves Desescaut information May 2014) |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Nontronite data |
| Locality Data: | Click here to view Pestarenga Mine, Quinta da Madalena, Ferreira de Aves, Sátão, Viseu, Portugal |
| Photo Gallery | View Gallery (3 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 364978 |
| Long-form Identifier: | 1:3:364978:7 |
| GUID (UUID V4): | 0 |
| References |
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Pestarenga Mine, Quinta da Madalena, Ferreira de Aves, Sátão, Viseu, Portugal