Spectrum

Visible Near-IR reflectance spectrum of Mg-Siderite Vizille powder (Viz) - Mg # = 42.4%

Title
Visible Near-IR reflectance spectrum of Mg-Siderite Vizille powder (Viz) - Mg # = 42.4%
DOI
10.26302/SSHADE/EXPERIMENT_BS_20240605_001
Data reference
Beck, Pierre; Beyssac, Olivier; Schmitt, Bernard (2023): Near and Mid-IR reflectance, Mid-IR transmission and Raman emission spectra of a series of Fe-Mg carbonates along the Siderite-Magnesite solid solution. SSHADE/DRIMS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20240605_001
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
reflectance factor
Intensity unit
no unit
Instrument
SHADOWS Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
cylindric aluminum sample holder, diameter 7 mm, depth 1 mm
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge
#1 400.0 - 640.0 40.0 3.2
#2 680.0 - 1560.0 40.0 6.5
#3 1600.0 - 2700.0 10.0 13.0
#4 2720.0 - 2820.0 20.0 13.0
#5 2840.0 - 3720.0 20.0 26.0
Observation geometry
bidirectional
Observation mode
fixed angles
Incidence angle
0.0°
Emergence angle
30.0°
Azimuth angle
0.0°
Phase angle
30.0°
Resolution illumination
2.9°
Resolution observation
2.05°
Illumination
Observation
Comments
partial polarization variable with wavelength (from monochromator grating)
Observation mode
single spot
Resolutions
5.2 $mm$
Experiment
Near and Mid-IR reflectance, Mid-IR transmission and Raman emission spectra of a series of Fe-Mg carbonates along the Siderite-Magnesite solid solution
Date begin
2023-04-01
Release date
2024-07-10 17:01:31 UTC+0000
Version (Date)
#1 (2024-07-10 17:01:31 UTC+0000, Updated: 2024-07-10 18:00:48 UTC+0000)
History
Date Mode Version Status Comments
2024-06-08 20:06:00 UTC+0000 first import #1 valid version
Analysis
Raw bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (1000-1300nm) and 2) with "Infragold" using its relative spectral reflectance (1300-4800nm). Only very little residual water vapor line is observed around 2.6µm.
Quality flag
4
Validator(s)