Montebrasite reflectance spectrum, IR illum., CSIRO 2025
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Measurement details
| Description | Reflectance spectrum of Montebrasite in M1796, from CSIRO Reflectance (2025). From original file 'Amblygonite_M1796_Batch_3_.0.dpt'. |
| Reference | Reflectance spectra measured by Carsten Laukamp and colleagues |
| Material | Montebrasite [ LiAl(PO4)(OH) ] |
| Analysis technique | Reflectance |
| Instrument | Bruker Vertex 80v FTIR spectrometer |
| Illumination | IR light source |
| Channel count | 3667 |
| Wavelength range | 2004 … 16664 nm |
| Intensity range | 0.453 absolute reflectance |
| Download | Amblygonite_M1796_Batch_3_.0.txt [80.0 kB] |
Specimen details
| Name | M1796 Montebrasite |
| Owner | CSIRO - ARRC Collection |
| Locality | Hill City, Pennington Co., SD, USA |
| Link to CMR Specify database | https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000033 |
| Phase abundance (QXRD) | Montebrasite: 100% |
| Other measurements | Montebrasite XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245) |
Specimen image
Image of Montebrasite [ LiAl(PO4)(OH) ] in specimen 'M1796 Montebrasite' [CSIRO].
(C) 2026 CSIRO Mineral Resources. All rights reserved.
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Li | 1 | 11.1 | 4.76 |
| Al | 1 | 11.1 | 18.5 |
| P | 1 | 11.1 | 21.2 |
| O | 5 | 55.6 | 54.8 |
| H | 1 | 11.1 | 0.691 |
| Total | 9 | 100 | 100 |