Vis-NIR reflectance spectra of H2O ice with varying grain sizes (70-1060µm), shapes (spherical or irregular) and three mixtures, from 70 to 220 KKatrin Stephan, Mauro Ciarniello, Olivier Poch, David Haack & Andrea Raponi
We measured the reflectance spectra (from 0.4 to 4.2 µm) of water ice particles of varying sizes (from 70 to 1060 µm), shapes (spherical or irregular grains), and three mixtures of ~70 and ~1060 µm grains, at different temperatures from 70 to 220 K.
Varying composition, absorption edge and incidence angle
The 'phasma' database contains Raman and FTIR spectra from minerals of terrestrial and extraterestrial materials. It also contains spectra acquired from rock powder-organic mixtures of astrobiological interest (biosignatures)
NIR spectra of a series of opal (-A and -CT) in ambient conditions and at low temperature (~ -35°C) and/or low pressure (~ 8 mbar)Boris Chauviré, Eric Quirico & Pierre Beck
NIR spectra of 4 opal-A and 13 opal-CT in ambient conditions and at low temperature (~ -90°C) and/or low pressure (~ 8 mbar)
Vis-NIR reflectance spectra of Beauregard pigments (PIG_0174_A): raw blocks, powders, polished plot and painted matterBernard Schmitt, Emilie Chalmin-Aljanabi & Aurélie Chassin de Kergommeaux
Vis-NIR reflectance spectra of Beauregard pigments (PIG_0174_2016) as raw blocks, powders with grain sizes < 160 µm (2 densities: 0.96 and 1.22), polished plot and a painted matter on limestone
The University of Helsinki Astrophysical Scattering and Spectroscopy Database (UH-ApS) holds spectra and bi-directional reflectance distribution data in ultraviolet, visual and near-infrared wavelengths for solid materials with relevance to planetary sciences. These include meteorites, minerals, amorphous solids, and materials relevant to space debris or Earth observations.
Raw, normalized and baseline-corrected of MIR transmission spectra of GRA95229 matrix grains pressed on diamonds under vacuum at ambiant temperature and 300CLydie Bonal
MIR spectra of several matrix grains of GRA95229 at different temperature, under vacuum
VUV absorbance spectra between 10 and 130 K of amorphous (CH3)2CHCN deposited at 10 K
Vis-NIR reflectance spectra of Narbonne sand (NS 264) wetted with water and dried in ambiant air at 38°CVéronique Carrère
In order to investigate the spectral behavior of humidity on sand spectra, we have acquired laboratory reflectance spectra of a sand containing various proportion of water. Water was deposited on a dry sand (previously dried in an oven at 40°C during one night). During the experiment, the sample is then dried, under the sun at 38°C. A spectrum is acquired every 5 minutes with an ASD FieldSpec3FR. This experiment was done on Narbonne sand (NS...
MIR absorbance spectra of pressed QUE99177 matrix grains (CR Chondrite) under vacuum at different temperaturesLydie Bonal
Raw and normalized (baseline-corrected) MIR absorbance spectra of several matrix grains of QUE99177 (CR Chondrite) pressed on a diamond window and measured under vacuum at ambient temperature (22°C) and after heating at 300°C
Optical constants are obtained by reflectance measurements with polarized light in a temperature range of 10 K to 300 K
Optical constants are obtained by reflectance measurements in a temperature range of 10 K to 300 K
The CHIPS database contains spectroscopic experiments of several types, such as reflectance, Raman and transmission, with spectral ranges covering from the UV to the near-infrared. The studied samples are either natural geological samples, field sites, meteorites or synthetic components.
VNIR reflectance spectra of Magnesium chloride hexahydrate with 3 different grain sizes and at variable temperature (80-295 K)Simone DeAngelis, Cristian Carli, Federico Tosi, Pierre Beck, Olivier Brissaud, Bernard Schmitt & Sandra Potin
Vis-NIR (0.5-4.7 µm) reflectance spectra of Magnesium chloride Hexahydrate with three different grain sizes (0-250, 250-500 and 500-800 µm) acquired at 12 temperatures between 80K and 295K
We measured the Vis-IR spectral reflectance of mixtures including water ice, kerite, and pyrrhotite, with varying abundances, mixing modality, and grain size