Prehnite reflectance spectrum, IR illum., CSIRO 2025
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Measurement details
| Description | Reflectance spectrum of Prehnite in 150, from CSIRO Reflectance (2025). From original file 'Prehnite_150_.0.dpt'. |
| Reference | Reflectance spectra measured by C. Laukamp and co-authors, CSIRO Mineral Resources |
| Material | Prehnite [ Ca2Al(Si3Al)O10(OH)2 ] |
| Analysis technique | Reflectance |
| Instrument | Bruker Vertex 80v FTIR spectrometer |
| Illumination | IR light source |
| Channel count | 3667 |
| Wavelength range | 2004 … 16664 nm |
| Intensity range | 0.643 absolute reflectance |
| Lines | AlO45- Stretch: 700 — 900 cm-1, GeO44- Stretch: 700 — 800 cm-1, OH ν: 3122 cm-1, Se[IV]O32- Bend: 400 cm-1, TiO44- Bend: 350 cm-1, TiO44- Stretch: 650 — 800 cm-1 |
| Download | Prehnite_150_.0.txt [80.0 kB] |
Specimen details
| Name | 150 Prehnite |
| Owner | CSIRO |
| Link to CMR Specify database | https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000646 |
| Phase abundance (QXRD) | |
| Type | Individual Sample |
| Other measurements | Diopside and Prehnite XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245) |
Specimen image
Image of Prehnite and Diopside in specimen '150 Prehnite' [CSIRO].
(C) 2025 CSIRO Mineral Resources. All rights reserved.
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| H | 2 | 9.52 | 0.489 |
| Ca | 2 | 9.52 | 19.4 |
| Al | 2 | 9.52 | 13.1 |
| Si | 3 | 14.3 | 20.4 |
| O | 12 | 57.1 | 46.6 |
| Total | 21 | 100 | 100 |