Classification of Bechererite |
| IMA status: | Approved 1994 |
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| Strunz 8th edition ID: | 6/D.08-05
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| Nickel-Strunz 10th (pending) edition ID: | 7.DD.55
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates) D : Sulfates (selenates, etc.) with additional anions, with H2O D : With only medium-sized cations; sheets of edge-sharing octahedra |
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| Dana 7th edition ID: | 4.0.0.0 |
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| mindat.org URL: | http://www.mindat.org/min-593.html Please feel free to link to this page. |
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Type Occurrence of Bechererite |
| Type Locality: | Tonopah-Belmont Mine (East Vulture Mine; Belmont-McNeil Mine; Economy Mining Co. Mine), Belmont Mountain, Tonopah, Osborn District, Big Horn Mts, Maricopa Co., Arizona, USA |
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Physical Properties of Bechererite |
| Lustre: | Vitreous |
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| Colour: | Light green, Ice Blue, Colourless |
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| Streak: | White |
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| Hardness (Mohs): | 2 - 3 |
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Crystallography of Bechererite |
| Crystal System: | Trigonal |
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| Class (H-M): | 3 - Pyramidal |
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| Space Group: | P3 |
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| Cell Parameters: | a = 8.319(2) Å, c = 7.377(1) Å
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| Ratio: | a:c = 1 : 0.887 |
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| Unit Cell Volume: | V 442.13 ų (Calculated from Unit Cell) |
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| Z: | 1 |
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| Morphology: | Hemimorphic elongate trigonal pyramids. |
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Optical Data of Bechererite |
| Type: | Uniaxial (-) |
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| RI values: | nω = 1.705 nε = 1.611 |
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| Maximum Birefringence: | δ = 0.094
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Moderate |
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Chemical Properties of Bechererite |
| Formula: | | (Zn,Cu) | | Zn | | [(OH) | | |(SO | | ,HSiO | | ) | | ] |
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| Essential elements: | H, O, S, Zn |
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| All elements listed in formula: | Cu, H, O, S, Si, Zn |
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Relationship of Bechererite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Related Minerals - Dana Grouping):
- + | |
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Other Names for Bechererite |
| 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 Bechererite |
| Reference List: | Mineralogical Record: 27: 393.
Giester, G. and Rieck, B. (1996): Bechererite, (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2, a novel mineral species from the Tonopah-Belmont mine, Arizona: American Mineralogist 81, 244-248.
Hoffmann, Ch., Armbruster, Th., Giester, G (1997): Acentric structure (P3) of bechererite, Zn7Cu(OH)13[SiO(OH)3SO4]: American Mineralogist 82, 1014-1018. |
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Articles/Blogs about Bechererite |
Internet Links for Bechererite |
| Search Engines: |
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| External Links: | Look for Bechererite on WebmineralLook for Bechererite on Athena MineralogyLook for Bechererite on WikipediaLook for Bechererite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Bechererite in the Natural History Museum (London) online catalogueBechererite details from Handbook of Mineralogy (PDF) |
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| Mineral Dealers: | The Arkenstone - Fine MineralsBuy Fine Minerals from mineralsweb.comBuy minerals from Mineralium.comWendel Minerals - Auktion & ShopSearch for Bechererite on minvision.comLapis Mineral MagazinMineral Classics - Worldwide Collector Quality Minerals and GemsBuy fine minerals and gemstones from Pala InternationalSearch for - Bechererite - on e-Rocks Mineral Sales & AuctionsFabre Minerals - search for Bechererite specimensrare and unusual minerals mainly crystallizedBuy from David K Joyce minerals |
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Localities for Bechererite |
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