Classification of Guimarãesite |
| IMA status: | Approved 2006 |
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| Strunz 8th edition ID: | 7/D.01-53
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| Nickel-Strunz 10th (pending) edition ID: | 8.DA.10
8 : PHOSPHATES, ARSENATES, VANADATES D : Phosphates, etc. with additional anions, with H2O A : With small (and occasionally larger) cations |
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| mindat.org URL: | http://www.mindat.org/min-30764.html Please feel free to link to this page. |
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Type Occurrence of Guimarãesite |
| Type Locality: | Guimarãesite occurrence, Piauí valley, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil |
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Crystallography of Guimarãesite |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2/m - Prismatic |
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| Space Group: | B2/b {B1 1 2/b} {C2/c} {C1 2/c 1} |
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| Cell Parameters: | a = 15.98Å, b = 11.84Å, c = 6.63Å β = 95.15° |
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| Ratio: | a:b:c = 1.35 : 1 : 0.56 |
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| Unit Cell Volume: | V 1,249.35 ų (Calculated from Unit Cell) |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 9.48 | | (90) | | 5.98 | | (100) | | 4.82 | | (80) | | 3.152 | | (90) | | 3.052 | | (70) | | 2.961 | | (70) | | 2.841 | | (70) |
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Chemical Properties of Guimarãesite |
| Formula: | | Ca | | (Zn,Mg,Fe | | ) | | Be | | [(OH) | | |(PO | | ) | | ] · 6H | | O |
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| All elements listed in formula: | Be, Ca, Fe, H, Mg, O, P, Zn |
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Relationship of Guimarãesite to other Species |
| Member of Group: | |
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Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Guimarãesite |
| 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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Internet Links for Guimarãesite |
| Search Engines: |
Look for Guimarãesite on Google
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| External Links: | Look for Guimarãesite on WebmineralLook for Guimarãesite on Athena MineralogyLook for Guimarãesite on WikipediaLook for Guimarãesite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Guimarãesite in the Natural History Museum (London) online catalogue |
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| Jobs: | Mining & Geology Jobs |
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Localities for Guimarãesite |