Classification of Pradetite |
| IMA status: | Approved 1991 |
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| Explanation of status: | Revalidated in 2006 (IMA 06-D) |
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| Strunz 8th edition ID: | 7/C.06-49
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| Nickel-Strunz 10th (pending) edition ID: | 8.CE.30
8 : PHOSPHATES, ARSENATES, VANADATES C : Phosphates without additional anions, with H2O E : With only medium-sized cations, RO4:H2O about 1:2.5 |
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Type Occurrence of Pradetite |
| Type Locality: | Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France |
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Physical Properties of Pradetite |
| Density (measured): | 3.33 g/cm3 |
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| Density (calculated): | 3.31 g/cm3 |
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Crystallography of Pradetite |
| Crystal System: | Triclinic |
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| Class (H-M): | 1 - Pedial |
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| Space Group: | P1 |
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| Cell Parameters: | a = 8.033Å, b = 10.374Å, c = 6.446Å α = 79.62°, β = 84.95°, γ = 86.21° |
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| Ratio: | a:b:c = 0.774 : 1 : 0.621 |
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| Unit Cell Volume: | V 525.64 ų (Calculated from Unit Cell) |
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| Z: | 1 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 10.191 | | (100) | | 8.01 | | (60) | | 3.667 | | (60) | | 4.001 | | (50) | | 3.151 | | (50) | | 3.063 | | (50) | | 2.674 | | (40) | | 3.404 | | (35) | | 2.615 | | (35) | | 3.258 | | (30) |
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| Comments: | Cap Garonne |
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Chemical Properties of Pradetite |
| Formula: | | CoCu | | (AsO | | ) | | (AsO | | OH) | | ·9H | | O |
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| Essential elements: | |
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| All elements listed in formula: | As, Co, Cu, H, O |
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Relationship of Pradetite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | |
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Other Names for Pradetite |
| Synonyms: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Pradetite |
| Reference List: | H. Sarp & B. Dominik (1995):"Redefinition de la Lindackerite: sa formule chimique, ses donnees cristallographiques et optiques", archs Sci. Geneve 48, 239-250.
Hybler, J., et al. (2003) European Journal of Mineralogy: 15: 1035-1042.
American Mineralogist (2004): 89: 1833 (abstract).
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Internet Links for Pradetite |
| Search Engines: |
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| External Links: | Look for Pradetite on WebmineralLook for Pradetite on Athena MineralogyLook for Pradetite on WikipediaLook for Pradetite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Pradetite in the Natural History Museum (London) online catalogue |
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Localities for Pradetite |