Muscovite reflectance spectrum, 20±2°C, Pejcic et al. 2021 (EP2021-1148)
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Measurement details
| Description | Reflectance spectrum of Muscovite in specimen 'M2084' (CSIRO - C. Laukamp), measured September 2023. |
| 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 | Muscovite [ KAl2(Si3Al)O10(OH)2 ] |
| 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 | 0.0347 … 0.318 absolute reflectance |
| Lines | OH 2ν: 0.8797 eV, OH ν: 0.4503 eV |
| Download | Zinnwaldite_Reflectance.txt [83.6 kB] |
Specimen details
| Name | M2084 Muscovite |
| Owner | CSIRO - ARRC Collection |
| Locality | Cocanarup, Ravensthorpe, WA, Australia |
| Link to CMR Specify database | https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000947 |
| Phase abundance (QXRD) |
|
| Other measurements | Muscovite-2M1 and Zinnwaldite-1M XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245) |
Specimen image
Image of Zinnwaldite, Muscovite-2M1 and Zinnwaldite-1M in specimen 'M2084 Muscovite' [CSIRO], from Cocanarup, Ravensthorpe, WA, Australia.
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Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| K | 1 | 4.76 | 9.82 |
| Al | 3 | 14.3 | 20.3 |
| Si | 3 | 14.3 | 21.2 |
| O | 12 | 57.1 | 48.2 |
| H | 2 | 9.52 | 0.506 |
| Total | 21 | 100 | 100 |