Classification of Pseudosinhalite |
| IMA status: | Approved 1997 |
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| Strunz 8th edition ID: | 5/G.07-12
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| Nickel-Strunz 10th (pending) edition ID: | 6.AC.10
6 : BORATES A : Monoborates C : B(O,OH)4, without and with additional anions; 1(T), 1(T)+OH, etc |
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Type Occurrence of Pseudosinhalite |
| Type Locality: | Tayezhnoe (Tayozhnoye) Fe-B skarn, Aldan Shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia |
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Physical Properties of Pseudosinhalite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Colourless |
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Crystallography of Pseudosinhalite |
| Crystal System: | Monoclinic |
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Optical Data of Pseudosinhalite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.691 nβ = 1.713 nγ = 1.730 |
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| Maximum Birefringence: | δ = 0.039
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | High |
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| Dispersion: | r > v or r < v |
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Chemical Properties of Pseudosinhalite |
| Formula: | |
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| Essential elements: | Al, B, H, Mg, O |
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| All elements listed in formula: | Al, B, H, Mg, O |
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Relationship of Pseudosinhalite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Pseudosinhalite |
| 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 Pseudosinhalite |
| Reference List: | Daniels, P., Krosse, S., Werding, G., and Schreyer, W. (1997) "Pseudosinhalite", a new hydrous MgAl-borate: synthesis, phase characterization, crystal structure, and P-T stability. Contributions to Mineralogy and Petrology: 128: 261-271.
Schreyer, W., Pertsev, N.N., Medenbach, O., Burchard, M., Dettmar, D. (1998) Pseudosinhalite: discovery of the hydrous MgAl-borate as a new mineral in the Tayozhnoye, Siberia, skarn deposit. Contributions to Mineralogy and Petrology (1998): 133: 382-388.
Strunz, H. and Nickel, E. (2000) Pseudosinhalite is a structural isotype of chondrodite. American Mineralogist: 85: 1828-1829.
Daniels, P. and Schreyer, W. (2001) Comments on: Strunz and Nickel: "Pseudosinhalite is a structural isotype of chondrodite." American Mineralogist: 86: 583-584.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
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Internet Links for Pseudosinhalite |
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| External Links: | Look for Pseudosinhalite on WebmineralLook for Pseudosinhalite on Athena MineralogyLook for Pseudosinhalite on WikipediaLook for Pseudosinhalite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Pseudosinhalite in the Natural History Museum (London) online cataloguePseudosinhalite details from Handbook of Mineralogy (PDF) |
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Localities for Pseudosinhalite |