Classification of Menezesite |
| IMA status: | Approved 2005 |
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| Nickel-Strunz 10th (pending) edition ID: | 4.FN.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
N : Hydroxides with H2O±(OH); frameworks of corner and/or face-sharing octahedra |
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Type Occurrence of Menezesite |
| Type Locality: | Jacupiranga Mine, Cajati, São Paulo, Southeast Region, Brazil |
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| General Appearance of Type Material: | Rhombododecahedra up to 1 mm, isolated or in aggregates. |
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| Year of Discovery: | Late |
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| Geological Setting of type material: | Contact zone between dolomite carbonatite and “jacupirangite” (=a pyroxenite) |
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| Associated Minerals at type locality: | |
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Physical Properties of Menezesite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Reddish brown |
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| Streak: | White |
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| Hardness (Mohs): | 4 |
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| Density (calculated): | 4.181 g/cm3 |
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Crystallography of Menezesite |
| Crystal System: | Isometric |
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| Class (H-M): | m3 (2/m 3) - Diploidal |
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| Space Group: | Im3 (I2/m 3) |
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| Cell Parameters: | a = 13.017(1) Å
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| Unit Cell Volume: | V 2,205.63 ų (Calculated from Unit Cell) |
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| Z: | 2 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 9.183 | | (100) | | 4.592 | | (12) | | 4.136 | | (11) | | 3.256 | | (16) | | 3.070 | | (13) | | 2.923 | | (11) | | 2.655 | | (13) |
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Optical Data of Menezesite |
| Type: | Isotropic |
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| Comments: | n>1.93(meas), calculated = 2.034 |
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Chemical Properties of Menezesite |
| Formula: | |
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| All elements listed in formula: | Ba, H, Mg, Nb, O, Zr |
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Other Names for Menezesite |
| Synonyms: | |
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| Other Languages: | |
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Other Information |
| Fluorescence in UV light: | None |
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| 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 Menezesite |
| Reference List: | Daniel Atencio, José M.V. Coutinho, Antonio C. Doriguetto, Yvonne P. Mascarenhas,
Javier Ellena, and Viviane Ferrari1 (2008) Menezesite, the first natural heteropolyniobate, from Cajati, São Paulo, Brazil:
Description and crystal structure. American Mineralogist, Volume 93, pages 81–87, 2008 |
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Articles/Blogs about Menezesite |
Internet Links for Menezesite |
| Search Engines: |
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| External Links: | Look for Menezesite on WebmineralLook for Menezesite on Athena MineralogyLook for Menezesite on WikipediaLook for Menezesite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Menezesite in the Natural History Museum (London) online catalogue |
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| Mineral Dealers: | Buy fine minerals and gemstones from Pala Internationalrare and unusual minerals mainly crystallizedMineral Classics - Worldwide Collector Quality Minerals and GemsSearch for - Menezesite - on e-Rocks Mineral Sales & AuctionsWendel Minerals - Auktion & ShopBuy from David K Joyce mineralsFine Minerals from Dan Weinrich MineralsWright's Rock Shop - excellent mineral specimens since 1970Buy minerals from Mineralium.comThe Arkenstone - Fine MineralsHigh-end worldwide specimens & outstanding customer serviceFabre Minerals - search for Menezesite specimens |
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Localities for Menezesite |
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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