Actinolite reflectance spectrum, 20±2°C, Pejcic et al. 2022 (EP2022-5804)

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Measurement details

Description VNIR-SWIR reflectance spectrum of Actinolite in specimen 'NR_ACT_02' (CSIRO - ARRC).
Reference Pejcic et al. 2022 (EP2022-5804)
Pejcic, Bobby; Shelton, Tina; Laukamp, Carsten; Lau, Ian; leGras, Monica. Visible-Near Infrared Spectral Library. Perth: CSIRO; 2022. csiro:EP2022-5804. https://doi.org/10.25919/whwy-ma94
Material Actinolite [ ☐Ca2(Mg4.5-2.5FeII0.5-2.5)Si8O22(OH)2 ]
Specimen temperature 20±2°C
Analysis technique Reflectance
Instrument ASD FieldSpec3 spectrometer (model A122300)
Det. technology 512 element Si photodiode array (350-1000nm) + InGaAs photodiodes (1000-2500nm)
Acquisition time 3 s
Channel count 2151
Wavelength range 350 … 2499 nm
Intensity range 0.0522 … 0.198 Arb. units
Related measurement Actinolite reflectance spectrum, 20±2°C, Pejcic et al. 2021 (EP2021-1148)
Line OH 2ν: 7147 cm-1
Download Actinolite_Reflectance_2.txt [45.3 kB]

Specimen image

Image of Actinolite, Clinochlore (var. Fe), Magnetite, Quartz and Tremolite in specimen 'NR-ACT-02 Actinolite' [CSIRO].

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Composition

Nominal composition of Actinolite [ ☐Ca2(Mg4.5-2.5FeII0.5-2.5)Si8O22(OH)2 ].
Element At% Wt%
H 4.95 0.24
Na 0.533 0.59
Mg 8.3 9.71
Ca 4.46 8.6
Ti 0.0477 0.11
Mn 0.0492 0.13
Fe 3.19 8.58
Al 1.07 1.39
Si 18.96 25.64
O 58.44 45.01
Total 100 100