Classification of Brandholzite |
| IMA status: | Approved 1998 |
|---|
| Strunz 8th edition ID: | 4/F.04-15
|
|---|
| Nickel-Strunz 10th (pending) edition ID: | 4.FH.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
H : Hydroxides with H2O +- (OH); insular octahedra |
|---|
| mindat.org URL: | http://www.mindat.org/min-7046.html
Please feel free to link to this page. |
|---|
Type Occurrence of Brandholzite |
| Type Locality: | Brandholz - Goldkronach District, Fichtelgebirge, Franconia, Bavaria, Germany |
|---|
Physical Properties of Brandholzite |
| Lustre: | Vitreous |
|---|
| Colour: | Colourless |
|---|
| Hardness (Mohs): | 2 - 3 |
|---|
Crystallography of Brandholzite |
| Crystal System: | Trigonal |
|---|
| Class (H-M): | 3 - Pyramidal |
|---|
| Space Group: | P3 |
|---|
| Cell Parameters: | a = 16.119Å, c = 9.868Å
|
|---|
| Ratio: | a:c = 1 : 0.612 |
|---|
| Unit Cell Volume: | V 2,220.42 ų (Calculated from Unit Cell) |
|---|
Optical Data of Brandholzite |
| Type: | Uniaxial (-) |
|---|
| RI values: | nω = 1.570 nε = 1.569 |
|---|
| Maximum Birefringence: | δ = 0.001
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
|---|
| Surface Relief: | Low |
|---|
Chemical Properties of Brandholzite |
| Formula: | |
|---|
| Essential elements: | H, Mg, O, Sb |
|---|
| All elements listed in formula: | H, Mg, O, Sb |
|---|
Relationship of Brandholzite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
|---|
Other Names for Brandholzite |
| Synonyms: | |
|---|
| Other Languages: | |
|---|
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. |
|---|
References for Brandholzite |
| Reference List: | Friedrich, A., Wildner, M. and Tillmanns, E. (1998): Strukturuntersuchung und Kristallchemie des neuen Minerals Mg(H2O)6[Sb(OH)6]2 sowie einiger isotyper synthetischer Antimonate MeII(H2O,NH3)6[Sb(OH)6]2 (MeII = Mg, Co, Cu). Mitt. Österr. Mineral. Ges.143, 276-278.
Friedrich, A., Wildner, M., Tillmanns, E. & Merz, P. L. (2000): Crystal chemistry of the new mineral brandholzite, Mg(H2O)6[Sb(OH)6]2, and of the synthetic analogues M2+(H2O)6[Sb(OH)6]2 (M2+ = Mg, Co). American Mineralogist: 85, 593-599.
Friedrich, A., Mazzi, F., Wildner, M. & Tillmanns, E. (2003): Isotypism of Co(H2O)6[Sb(OH)6]2 with brandholzite and bottinoite. American Mineralogist 88, 462-463. |
|---|
Internet Links for Brandholzite |
| Search Engines: |
Look for Brandholzite on Google
Look for Brandholzite images on Google |
|---|
| External Links: | Look for Brandholzite on WebmineralLook for Brandholzite on Athena MineralogyLook for Brandholzite on WikipediaLook for Brandholzite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Brandholzite in the Natural History Museum (London) online catalogueBrandholzite details from Handbook of Mineralogy (PDF) |
|---|
| Mineral Dealers: | High-end worldwide specimens & outstanding customer serviceRare and Unusual minerals at Mineralogical Research CompanyTop quality minerals from Kristalle of CaliforniaBuy minerals from Mineralium.comBuy RARE Minerals from Rocks of AfricaBuy fine minerals and gemstones from Pala InternationalBuy Fine Minerals from mineralsweb.comThe Arkenstone - Fine MineralsDAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.rare and unusual minerals mainly crystallizedWendel Minerals - Auktion & ShopMineral Classics - Worldwide Collector Quality Minerals and Gems |
|---|
| Jobs: | Mining & Geology Jobs |
|---|
Page Sponsor |
| Sponsorship: | This page is currently not sponsored. Click here to sponsor this page. |
|---|
Localities for Brandholzite |
