Classification of Gilmarite |
| IMA status: | Approved |
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| Strunz 8th edition ID: | 7/B.13-30
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| Nickel-Strunz 10th (pending) edition ID: | 8.BE.25
8 : PHOSPHATES, ARSENATES, VANADATES B : Phosphates, etc., with additional anions, without H2O E : With only medium-sized cations, (OH, etc.):RO4 > 2:1 |
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| mindat.org URL: | http://www.mindat.org/min-6970.html Please feel free to link to this page. |
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Type Occurrence of Gilmarite |
| Type Locality: | Roua Mines (Clue de Roua), Daluis, Guillaumes, Alpes-Maritimes, Provence-Alpes-Côte d'Azur, France |
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Physical Properties of Gilmarite |
| Lustre: | Vitreous |
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| Colour: | Greenish blue |
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| Streak: | Greenish blue |
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| Hardness (Mohs): | 3 |
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Crystallography of Gilmarite |
| Crystal System: | Triclinic |
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Optical Data of Gilmarite |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.760 nβ = 1.800 nγ = 1.830 |
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| 2V: | Measured: 77° , Calculated: 80° |
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| Maximum Birefringence: | δ = 0.070
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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| Dispersion: | r > v |
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Chemical Properties of Gilmarite |
| Formula: | |
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| Essential elements: | As, Cu, H, O |
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| All elements listed in formula: | As, Cu, H, O |
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Relationship of Gilmarite to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Gilmarite |
| 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 Gilmarite |
| Reference List: | Sarp, H. and Černý, R. (1999): Gilmarite, Cu3(AsO4)(OH)3, a new mineral: its description and crystal structure. European Journal of Mineralogy: 11, 549-555.
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Articles/Blogs about Gilmarite |
Internet Links for Gilmarite |
| Search Engines: |
Look for Gilmarite on Google
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| External Links: | Look for Gilmarite on WebmineralLook for Gilmarite on Athena MineralogyLook for Gilmarite on WikipediaLook for Gilmarite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Gilmarite in the Natural History Museum (London) online catalogueGilmarite details from Handbook of Mineralogy (PDF) |
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Localities for Gilmarite |
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