Classification of Rastsvetaevite |
| IMA status: | Approved 2000 |
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| Strunz 8th edition ID: | 8/EX.00-00
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| Strunz 9th edition ID: | 9.CO.10
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| Nickel-Strunz 10th (pending) edition ID: | 9.CO.10
9 : SILICATES (Germanates) C : Cyclosilicates O : [Si9O27]18- 9-membered rings |
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| Dana 8th edition ID: | 64.1b.1.2
64 : CYCLOSILICATES Rings with Other Anions and Insular Silicate Groups 1b : |
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| mindat.org URL: | http://www.mindat.org/min-26586.html Please feel free to link to this page. |
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Type Occurrence of Rastsvetaevite |
| Type Locality: | Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia |
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| General Appearance of Type Material: | irregularly shaped grains 1-2 mm in size, up to 2 cm across |
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| Place of Conservation of Type Material: | Fersman Mineralogical Museum, Moscow, Russia |
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| Geological Setting of type material: | hyperagpaitic pegmatite |
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| Associated Minerals at type locality: | |
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Physical Properties of Rastsvetaevite |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Reddish-pink |
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| Streak: | white |
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| Hardness (Mohs): | 5 - 6 |
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| Hardness Data: | Measured |
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| Tenacity: | Brittle |
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| Fracture: | Conchoidal |
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| Density (measured): | 2.86(2) g/cm3 |
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| Density (calculated): | 2.84 g/cm3 |
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Crystallography of Rastsvetaevite |
| Crystal System: | Trigonal |
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| Class (H-M): | 3m - Ditrigonal Pyramidal |
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| Space Group: | R3m |
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| Cell Parameters: | a = 14.249Å, c = 60.969Å
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| Ratio: | a:c = 1 : 4.279 |
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| Unit Cell Volume: | V 10720 ų |
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| Z: | 3 |
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| X-Ray Powder Diffraction: | | d-spacing | | Intensity | | 2.987 | | (100) | | 4.345 | | (81) | | 2.861 | | (70) | | 3.249 | | (57) | | 6.48 | | (47) | | 3.565 | | (41) |
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Optical Data of Rastsvetaevite |
| Type: | Uniaxial (+) |
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| RI values: | nω = 1.598 nε = 1.600 |
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| Maximum Birefringence: | δ = 0.002
 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 Rastsvetaevite |
| Formula: | |
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| All elements listed in formula: | Ca, Cl, Fe, H, K, Na, O, Si, Zr |
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Relationship of Rastsvetaevite to other Species |
| Member of Group: | |
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Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Rastsvetaevite |
| 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 Rastsvetaevite |
| Reference List: | • Khomyakov, A.P., Nechelyustov, G.N., Arakcheeva, A.V. (2006): Rastsvetaevite, Na27K8Ca12Fe3Zr6Si4[Si3O9]4[Si9O27]4(O,OH,H2O)6Cl2, a new mineral with a modular eudialyte-like structure and crystal-chemical systematics of the eudialyte group. Proceedings of the Russian Mineralogical Society, 135(1), 49-65. |
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Internet Links for Rastsvetaevite |
| Search Engines: |
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| External Links: | Look for Rastsvetaevite on WebmineralLook for Rastsvetaevite on Athena MineralogyLook for Rastsvetaevite on WikipediaLook for Rastsvetaevite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Rastsvetaevite in the Natural History Museum (London) online catalogue |
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Localities for Rastsvetaevite |
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality.
The  symbol next to localities in the list
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