Almandine reflectance spectrum, 20±2°C, Pejcic et al. 2021 (EP2021-1148)
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Measurement details
| Description | SWIR-MIR-TIR reflectance spectrum of Almandine [Fe2+3Al2(SiO4)3] in specimen 'M1335' (CSIRO - C. Laukamp). |
| Reference | Pejcic et al. 2021 (EP2021-1148) Pejcic, Bobby; Shelton, Tina; leGras, Monica; Laukamp, Carsten; Francis, Neil; Lau, Ian. Mid infrared spectral library. Perth: CSIRO; 2021. csiro:EP2021-1148. https://doi.org/10.25919/5b6n-n462 |
| Material | Almandine [ FeII3Al2(SiO4)3 ] |
| Specimen temperature | 20±2°C |
| Analysis technique | Reflectance |
| Instrument | Bruker Vertex 80v FTIR spectrometer |
| Det. technology | HgCdTe (MCT) photodetector, LN2 cooled |
| Channel count | 3835 |
| Wavelength range | 1333.55 … 16665.6 nm |
| Intensity range | 0.0448 … 0.291 absolute reflectance |
| Download | Almandine_Reflectance.txt [83.6 kB] |
Specimen details
| Name | M1335 Almandine |
| Owner | CSIRO - ARRC Collection |
| Locality | Broken Hill, Far West Region, NSW, Australia |
| Link to CMR Specify database | https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000386 |
| Phase abundance (QXRD) | |
| Other measurements | Almandine and Quartz XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245) |
Specimen image
Image of Almandine and Quartz in specimen 'M1335 Almandine' [CSIRO], from Broken Hill, Far West Region, NSW, Australia.
(C) 2025 CSIRO Mineral Resources. All rights reserved.
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Fe | 3 | 15 | 33.7 |
| Al | 2 | 10 | 10.8 |
| Si | 3 | 15 | 16.9 |
| O | 12 | 60 | 38.6 |
| Total | 20 | 100 | 100 |