Eucryptite and Quartz reflectance spectrum, IR illum., CSIRO 2025

Description	Reflectance spectrum of Quartz and Eucryptite in 'M1850', from CSIRO Reflectance (2025). From original file 'Eucryptite_M1850_Batch_3_.0.dpt'.
Reference	Reflectance spectra measured by Carsten Laukamp and colleagues
Materials	Eucryptite [ LiAlSiO₄ ], Quartz [ SiO₂ ]
Analysis technique	Reflectance
Instrument	Bruker Vertex 80v FTIR spectrometer
Illumination	IR light source
Channel count	3667
Wavelength range	2004 … 16664 nm
Intensity range	0.245 absolute reflectance
Lines	H2O Stretch: 2800 — 3660 cm-1, Reststrahlen: 8093 — 9617 nm (100%), 12401 — 13117 nm (29%), RSC: 8625 nm
Download	Eucryptite_M1850_Batch_3_.0.txt [80.0 kB]

Name	M1850 Eucryptite
Owner	CSIRO - ARRC Collection
Locality	Londonderry, Shire of Coolgardie, Goldfields-Esperance Region, WA, Australia
Link to CMR Specify database	https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000334
Phase abundance (QXRD)	Quartz: 68% Eucryptite: 18% Cookeite: 10% Kaolinite (var. poorly crystalline): 3% Clinochlore (var. Fe): 1% Muscovite-1M: <1%
Other measurements	Clinochlore, Cookeite, Eucryptite, Kaolinite, Muscovite-1M and Quartz XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245)

Image of specimen 'M1850 Eucryptite' [CSIRO].