Classification of Rémondite-(La) |
| IMA status: | Approved 1999 |
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| Nickel-Strunz 10th (pending) edition ID: | 5.AD.15
5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
D : With rare-earth elements (REE) |
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| mindat.org URL: | http://www.mindat.org/min-11012.html
Please feel free to link to this page. |
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Type Occurrence of Rémondite-(La) |
| Type Locality: | Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia |
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| General Appearance of Type Material: | microporous aggregates up to 2 mm in size |
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| Geological Setting of type material: | in hyperagpaitic pegmatites |
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Physical Properties of Rémondite-(La) |
| Lustre: | Vitreous |
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| Diaphaneity (Transparency): | Transparent |
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| Colour: | Bright yellow orange |
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| Streak: | White |
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| Hardness (Mohs): | 3 |
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| Hardness Data: | Measured |
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| Cleavage: | None Observed |
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| Fracture: | Conchoidal |
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| Density (measured): | 3.5 g/cm3 |
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| Density (calculated): | 3.57 g/cm3 |
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Crystallography of Rémondite-(La) |
| Crystal System: | Monoclinic |
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| Class (H-M): | 2 - Sphenoidal |
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| Space Group: | P21 {P1 1 21} {P21} {P1 21 1} |
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| Cell Parameters: | a = 10.49Å, b = 6.417Å, c = 10.5Å
β = 119.8° |
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| Ratio: | a:b:c = 1.635 : 1 : 1.636 |
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| Unit Cell Volume: | V 613 ų |
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| Z: | 2 |
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Optical Data of Rémondite-(La) |
| Type: | Biaxial (-) |
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| RI values: | nα = 1.615 nβ = 1.619 nγ = 1.622 |
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| 2V: | Measured: 80° |
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| Maximum Birefringence: | δ = 0.007
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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| Dispersion: | r < v |
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| Pleochroism: | Non-pleochroic |
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Chemical Properties of Rémondite-(La) |
| Formula: | |
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| Essential elements: | C, La, Na, O |
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| All elements listed in formula: | C, Ce, La, Na, O |
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Relationship of Rémondite-(La) to other Species |
Related Minerals - Nickel-Strunz Grouping):
- + | |
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Other Names for Rémondite-(La) |
| 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 Rémondite-(La) |
Reference List:
- + | Pekov, I.V., N.V. Chukanov, N.N. Kononkova, A.E. Zadov & Yu.V. Belovitskaya (2000), Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 129(1): 53-60.
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Internet Links for Rémondite-(La) |
| Search Engines: |
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| External Links: | Look for Rémondite-(La) on WebmineralLook for Rémondite-(La) on Athena Mineralogy [Link dead]Look for Rémondite-(La) on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseRemondite-(La) details from Handbook of Mineralogy (PDF) |
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| Jobs: | Mining & Geology Jobs |
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Localities for Rémondite-(La) |
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the  symbol to view information about a locality.
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