Epidote reflectance spectrum, 20±2°C, Pejcic <i>et al.</i> 2021 (EP2021-1148)

Epidote reflectance spectrum, 20±2°C, Pejcic et al. 2021 (EP2021-1148)

Loading...

Measurement details

Description	SWIR-MIR-TIR reflectance spectrum of Epidote [Ca2(Al2Fe3+)[Si2O7][SiO4]O(OH)] in specimen 'MCU_EPI_1' (CSIRO - C. Laukamp).
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	Epidote [ Ca₂(Al₂Fe^III)[Si₂O₇][SiO₄]O(OH) ]
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	0.0556 … 0.376 absolute reflectance
Related measurement	Epidote reflectance spectrum, 20±2°C, Pejcic et al. 2022 (EP2022-5804)
Download	Epidote_Reflectance.txt [83.6 kB]

Specimen details

Name	MCU_EPI_1 Epidote
Owner	CSIRO - ARRC Collection
Phase abundance (QXRD)	Epidote: 81.3% Quartz: 9.3% Albite: 5.4% Clinochlore (var. Fe): 2.2% Magnetite: 1.6% Muscovite-1M: 0.3%
Other measurements	Reflectance Epidote reflectance spectrum, 20±2°C, Pejcic et al. 2022 (EP2022-5804) XRD Albite, Clinochlore, Epidote, Magnetite, Muscovite-1M and Quartz XRD quant/phase, x-ray beam, Owen et al. 2023 (Jobs # 6243, 6245)

Specimen image

Image of Epidote, Albite, Clinochlore (var. Fe), Magnetite and Quartz in specimen 'MCU_EPI_1 Epidote' [CSIRO].

(C) 2026 CSIRO Mineral Resources. All rights reserved.

Composition

Nominal composition of Epidote [ Ca₂(Al₂Fe^III)[Si₂O₇][SiO₄]O(OH) ].
Element	Atoms	At%	Wt%
H	1	4.55	0.209
Ca	2	9.09	16.6
Fe	1	4.55	11.6
Al	2	9.09	11.2
Si	3	13.6	17.4
O	13	59.1	43
Total	22	100	100