Classification of Naldrettite |
| IMA status: | Approved 2004 |
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| Nickel-Strunz 10th (pending) edition ID: | 2.AC.25d
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.) A : Alloys C : Alloys of metalloids with PGE |
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Type Occurrence of Naldrettite |
| Type Locality: | Mesamax Northwest deposit, Ungava, Nunavik, Nord-du-Québec, Québec, Canada |
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Physical Properties of Naldrettite |
| Lustre: | Metallic |
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| Diaphaneity (Transparency): | Opaque |
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| Hardness (Mohs): | 4 - 5 |
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| Hardness (Vickers): | VHN50=358 - 418 kg/mm2 |
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| Tenacity: | Elastic |
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| Fracture: | Irregular/Uneven |
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Crystallography of Naldrettite |
| Crystal System: | Orthorhombic |
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| Class (H-M): | mm2 - Pyramidal |
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| Space Group: | Cmc21 |
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| Cell Parameters: | a = 3.3906Å, b = 17.5551Å, c = 6.957Å
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| Ratio: | a:b:c = 0.193 : 1 : 0.396 |
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| Unit Cell Volume: | V 414.10 ų (Calculated from Unit Cell) |
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| Morphology: | Anhedral grains |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 2.407 | | (34) | | 2.303 | | (35) | | 2.245 | | (100) | | 2.057 | | (52) | | 2.001 | | (40) | | 1.367 | | (35) | | 1.284 | | (42) |
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Optical Data of Naldrettite |
| Type: | Anisotropic |
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| Anisotropism: | Deep bright blue, lemon-buff, mauve to pale pink |
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| Bireflectance: | Weak |
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| Colour in reflected light: | Bright creamy white |
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| Pleochroism: | Non-pleochroic |
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Chemical Properties of Naldrettite |
| Formula: | |
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| All elements listed in formula: | Pd, Sb |
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Relationship of Naldrettite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Naldrettite |
| Synonyms: | |
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| Other Languages: | |
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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 Naldrettite |
| Reference List: | Bälz, U. and Schubert, K. (1969) Kristallstruktur von Pd2As(r) und Pd2Sb. Journal of Less-Common Metals: 19: 300-304.
Cabri, L.J., McDonald, A.M., Stanley, C.J., Rudashevsky, N.S., Poirier, G., Durham, B.R., Mungall, J.E. and Rudashevsky, V.N. (2005) Naldrettite, Pd2Sb, a new intermetallic mineral from the Mesamax Northwest deposit, Ungava region, Quebec, Canada. Mineralogical Magazine: 69: 89-97.
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Internet Links for Naldrettite |
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| External Links: | Look for Naldrettite on WebmineralLook for Naldrettite on Athena MineralogyLook for Naldrettite on WikipediaLook for Naldrettite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Naldrettite in the Natural History Museum (London) online catalogue |
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Localities for Naldrettite |
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality.
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