Eucryptite reflectance spectrum, IR illum., CSIRO 2025

Description	Reflectance spectrum of Eucryptite in PSP_E, from CSIRO Reflectance (2025). From original file 'Eucryptite_PSP_E_Batch_3_a_.0.dpt'.
Reference	Reflectance spectra measured by Carsten Laukamp and colleagues
Material	Eucryptite [ LiAlSiO₄ ]
Analysis technique	Reflectance
Instrument	Bruker Vertex 80v FTIR spectrometer
Illumination	IR light source
Channel count	3667
Wavelength range	2004 … 16664 nm
Intensity range	0.277 absolute reflectance
Line	H2O Stretch: 2800 — 3660 cm-1
Download	Eucryptite_PSP_E_Batch_3_a_.0.txt [80.0 kB]

Name	PSP_E Eucryptite / Quartz / Kaolinite
Owner	CSIRO - ARRC Collection
Link to CMR Specify database	https://cmr-specify.csiro.au/specify/bycatalog/CMR-MS/2024-MS-0000000335
Phase abundance (QXRD)	Eucryptite: 45% Quartz: 35% Kaolinite (var. poorly crystalline): 14% Cookeite: 6% Pollucite: 1% Ankerite: <1% Clinochlore (var. Fe): <1% Muscovite-1M: <1%
Other measurements	Ankerite, Clinochlore, Cookeite, Eucryptite, Kaolinite, Muscovite-1M, Pollucite and Quartz XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245)

Image of Eucryptite, Cookeite, Kaolinite (var. poorly crystalline), Pollucite and Quartz in specimen 'PSP_E Eucryptite / Quartz / Kaolinite' [CSIRO].

Nominal composition of Eucryptite [ LiAlSiO₄ ].
Element	Atoms	At%	Wt%
Li	1	14.3	5.51
Al	1	14.3	21.4
Si	1	14.3	22.3
O	4	57.1	50.8
Total	7	100	100