Classification of Jacquesdietrichite |
| IMA status: | Approved 2003 |
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| Nickel-Strunz 10th (pending) edition ID: | 6.AB.80
6 : BORATES A : Monoborates B : BO3, with additional anions; 1(D) + OH, etc. |
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Type Occurrence of Jacquesdietrichite |
| Type Locality: | Tachgagalt Mine (Tachguagalt Mine), Tachgagalt (Tachguagalt), Ouarzazate Province, Souss-Massa-Draâ Region, Morocco |
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| General Appearance of Type Material: | transparent bright-blue blades, sometimes intergrown into broader blades, and as aggregates of pale-blue scales |
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Physical Properties of Jacquesdietrichite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | bright blue |
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| Streak: | pale blue |
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| Hardness (Mohs): | 2 |
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| Hardness Data: | Measured |
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| Cleavage: | Perfect perfect and very easy {100}, and good {010}and {001} |
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| Density (measured): | 3.28 g/cm3 |
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| Density (calculated): | 3.303 g/cm3 |
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Crystallography of Jacquesdietrichite |
| Crystal System: | Orthorhombic |
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| Class (H-M): | mmm (2/m 2/m 2/m) - Dipyramidal |
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| Space Group: | Pmna (P2/m 2/n 21/a) |
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| Cell Parameters: | a = 9.455Å, b = 5.866Å, c = 8.668Å
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| Ratio: | a:b:c = 1.612 : 1 : 1.478 |
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| Unit Cell Volume: | V 480.75 ų (Calculated from Unit Cell) |
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| Z: | 4 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 4.734 | | (100) | | 3.941 | | (90) | | 3.192 | | (40) | | 2.545 | | (45) | | 2.489 | | (50) | | 1.922 | | (50) | | 1.838 | | (40) |
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Optical Data of Jacquesdietrichite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.627 nβ = 1.699 nγ = 1.769 |
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| 2V: | Calculated: 86° |
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| Maximum Birefringence: | δ = 0.142
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | High |
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| Comments: | X (deep blue) > Y (medium blue) > Z (pale blue)
X = a
Y = c
Z = b |
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Chemical Properties of Jacquesdietrichite |
| Formula: | |
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| Essential elements: | |
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| All elements listed in formula: | B, Cu, H, O |
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Relationship of Jacquesdietrichite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | |
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Other Names for Jacquesdietrichite |
| Synonyms: | |
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| German names: | |
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| Russian names: | |
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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 Jacquesdietrichite |
| Reference List: | Kampf, A.R. & Favreau, G. (2004): Jacquesdietrichite, Cu2[BO(OH)2](OH)3, a new mineral from the Tachgagalt mine, Morocco: Description and crystal structure. European Journal of Mineralogy, 16, 361-366.
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Internet Links for Jacquesdietrichite |
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| External Links: | Look for Jacquesdietrichite on WebmineralLook for Jacquesdietrichite on Athena MineralogyLook for Jacquesdietrichite on WikipediaLook for Jacquesdietrichite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Jacquesdietrichite in the Natural History Museum (London) online catalogue |
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Localities for Jacquesdietrichite |