Classification of Menezesite |
| IMA status: | Approved 2005 |
|---|
| 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 |
|---|
| mindat.org URL: | http://www.mindat.org/min-27607.html
Please feel free to link to this page. |
|---|
Type Occurrence of Menezesite |
| Type Locality: | Jacupiranga Mine, Cajati, São Paulo, Southeast Region, Brazil |
|---|
| General Appearance of Type Material: | Rhombododecahedra up to 1 mm, isolated or in aggregates. |
|---|
| Year of Discovery: | Late |
|---|
| Geological Setting of type material: | Contact zone between dolomite carbonatite and “jacupirangite” (=a pyroxenite) |
|---|
| Associated Minerals at type locality: | |
|---|
Physical Properties of Menezesite |
| Lustre: | Vitreous |
|---|
| Diaphaneity (Transparency): | Transparent |
|---|
| Colour: | Reddish brown |
|---|
| Streak: | White |
|---|
| Hardness (Mohs): | 4 |
|---|
| Density (calculated): | 4.181 g/cm3 |
|---|
Crystallography of Menezesite |
| Crystal System: | Isometric |
|---|
| Class (H-M): | m3 (2/m 3) - Diploidal |
|---|
| Space Group: | Im3 {I2/m 3} |
|---|
| Cell Parameters: | a = 13.017(1) Å
|
|---|
| Unit Cell Volume: | V 2,205.63 ų (Calculated from Unit Cell) |
|---|
| Z: | 2 |
|---|
| 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) |
|
|---|
Optical Data of Menezesite |
| Type: | Isotropic |
|---|
| Comments: | n>1.93(meas), calculated = 2.034 |
|---|
Chemical Properties of Menezesite |
| Formula: | |
|---|
| Essential elements: | Ba, H, Mg, Nb, O, Zr |
|---|
| All elements listed in formula: | Ba, H, Mg, Nb, O, Zr |
|---|
Other Names for Menezesite |
| Synonyms: | |
|---|
| Other Languages: | |
|---|
Other Information |
| Fluorescence in UV light: | None |
|---|
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
|---|
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 |
|---|
Internet Links for Menezesite |
| Search Engines: |
Look for Menezesite on Google
Look for Menezesite images on Google |
|---|
| 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 |
|---|
| Mineral Dealers: | Buy from David K Joyce mineralsSpiriferMinerals.com - high quality specimensBuy RARE Minerals from Rocks of AfricaEdwards Minerals - Fine SpecimensBuy Minerals and Crystals from Crystalarium.comFabre Minerals - search for Menezesite specimensThe Arkenstone - Fine MineralsBuy fine minerals and gemstones from Pala InternationalWendel Minerals - Auktion & ShopWilensky Fine MineralsFind Menezesite on www.crystalclassics.co.ukBuy Fine Minerals from mineralsweb.com |
|---|
| Jobs: | Mining & Geology Jobs |
|---|
Page Sponsor |
| Sponsorship: | This page is currently not sponsored. Click here to sponsor this page. |
|---|
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.
The symbol next to localities in the list
can be used to jump to that position on the map.
|
