Classification of Graeserite |
| IMA status: | Approved |
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| Strunz 8th edition ID: | 4/C.23-15
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| Nickel-Strunz 10th (pending) edition ID: | 4.JB.55
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates) J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates B : Arsenites, antimonites, bismuthites; with additional anions, without H2O |
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Type Occurrence of Graeserite |
| Type Locality: | Gorb, Lercheltini (Lärcheltini) area, Binn Valley, Wallis (Valais), Switzerland |
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| Geological Setting of type material: | In hydrothermal veins in a two-mica paragneiss. |
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Occurrences of Graeserite |
| Geological Setting: | Metamorphosed Precambrian calc-silicate gneissic rock in the footwall of a Zn-Fe-Mn orebody (Sterling Hill, NJ). |
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Physical Properties of Graeserite |
| Lustre: | Metallic |
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| Diaphaneity (Transparency): | Opaque |
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| Colour: | Black |
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| Streak: | Black |
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| Hardness (Mohs): | 5½ |
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| Fracture: | Conchoidal |
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Crystallography of Graeserite |
| Crystal System: | Monoclinic |
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Chemical Properties of Graeserite |
| Formula: | |
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| Essential elements: | As, Fe, H, O, Ti |
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| All elements listed in formula: | As, Fe, H, O, Ti |
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Relationship of Graeserite to other Species |
Related Minerals - Nickel-Strunz Grouping):
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Other Names for Graeserite |
| 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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| Industrial Uses: | None |
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References for Graeserite |
| Reference List: | Krezemnicki, M.S. and Reusser, E. (1998) Graeserite, Fe3+4Ti3As3+O13(OH) a new mineral species of the derbylite group from from the Mount Leone Nappe, Binntal Region, Western Alps, Switzerland. Canadian Mineralogist: 36: 1083-1088.
Schweizerische mineralogische und petrographische Mitteilungen: 78: 1-9.
Verbeek, E., Orosz, J., and Nikischer, T. (2006) Mineral News: 22(9): 8-9.
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Internet Links for Graeserite |
| Search Engines: |
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| External Links: | Look for Graeserite on WebmineralLook for Graeserite on Athena MineralogyLook for Graeserite on WikipediaLook for Graeserite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Graeserite in the Natural History Museum (London) online catalogueGraeserite details from Handbook of Mineralogy (PDF) |
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Localities for Graeserite |