Eudialyte reflectance spectrum, 20±2°C, Pejcic et al. 2022 (EP2022-5804)
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Measurement details
| Description | VNIR-SWIR reflectance spectrum of Eudialyte in specimen 'S4428' (Western Australian Museum) from Kola Peninsula, Russia. |
| Reference | Pejcic et al. 2022 (EP2022-5804) Pejcic, Bobby; Shelton, Tina; Laukamp, Carsten; Lau, Ian; leGras, Monica. Visible-Near Infrared Spectral Library. Perth: CSIRO; 2022. csiro:EP2022-5804. https://doi.org/10.25919/whwy-ma94 |
| Material | Eudialyte [ Na15Ca6Fe3Zr3Si(Si25O73)(O, OH, H2O)3(Cl, OH)2 ] |
| Specimen temperature | 20±2°C |
| Analysis technique | Reflectance |
| Instrument | ASD FieldSpec3 spectrometer (model A122300) |
| Det. technology | 512 element Si photodiode array (350-1000nm) + InGaAs photodiodes (1000-2500nm) |
| Acquisition time | 5 s |
| Channel count | 2151 |
| Wavelength range | 350 … 2499 nm |
| Intensity range | 0.0564 … 0.124 absolute reflectance |
| Download | Eudialyte_Reflectance.txt [45.4 kB] |
Specimen details
| Name | S4428 Eudialyte |
| Owner | Western Australian Museum |
| Locality | Khibiny Massif, Kola Peninsula, Murmansk Oblast, Northwestern Federal District, Russia |
| Link to CMR Specify database | https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000001034 |
Specimen image
Image of Eudialyte [ Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2 ] in specimen 'S4428 Eudialyte' [Western Australian Museum], from Kola Peninsula, Murmansk Oblast, Northwestern Federal District, Russia.
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Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| H | ~4 | ~2.963 | ~0.1331 |
| Na | 15 | 11.1 | 11.4 |
| Ca | 6 | 4.44 | 7.94 |
| Zr | 3 | 2.22 | 9.04 |
| Fe | 3 | 2.22 | 5.53 |
| Si | 26 | 19.3 | 24.1 |
| O | ~77 | ~57.04 | ~40.68 |
| Cl | ~1 | ~0.7407 | ~1.171 |
| Total | 135 | 100 | 100 |