A-785 | GhoSST | SSHADE

Experiment 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)

Sub-Experiment opal-A 86.2: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-A 86.2 in ambient conditions

Spectrum NIR spectrum of opal-A 86.2 under ambient conditions Spectrum NIR spectrum of opal-A 86.2 under ambient conditions

Sub-Experiment NIR spectra of opal-A 86.2 at low temperature

Spectrum NIR spectrum of opal-A 86.2 at low temperature Spectrum NIR spectrum of opal-A 86.2 at low temperature

Sub-Experiment NIR spectra of opal-A 86.2 at low pressure

Spectrum NIR spectrum of opal-A 86.2 at low pressure Spectrum NIR spectrum of opal-A 86.2 at low pressure

Sub-Experiment opal-A 785: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-A 785 in ambient conditions

Spectrum NIR spectrum of opal-A 785 under ambient conditions Spectrum NIR spectrum of opal-A 785 under ambient conditions

Sub-Experiment NIR spectra of opal-A 785 at low temperature

Spectrum NIR spectrum of opal-A 785 at low temperature Spectrum NIR spectrum of opal-A 785 at low temperature

Sub-Experiment NIR spectra of opal-A 785 at low pressure

Spectrum NIR spectrum of opal-A 785 at low pressure Spectrum NIR spectrum of opal-A 785 at low pressure

Sub-Experiment opal-A 1040: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-A 1040 in ambient conditions

Spectrum NIR spectrum of opal-A 1040 under ambient conditions Spectrum NIR spectrum of opal-A 1040 under ambient conditions

Sub-Experiment NIR spectra of opal-A 1040 at low temperature

Spectrum NIR spectrum of opal-A 1040 at low temperature Spectrum NIR spectrum of opal-A 1040 at low temperature

Sub-Experiment NIR spectra of opal-A 1040 at low pressure

Spectrum NIR spectrum of opal-A 1040 at low pressure Spectrum NIR spectrum of opal-A 1040 at low pressure

Sub-Experiment opal-CT 521: Tamb, low T

Sub-Experiment NIR spectra of opal-CT 521 in ambient conditions

Spectrum NIR spectrum of opal-CT 521 under ambient conditions Spectrum NIR spectrum of opal-CT 521 under ambient conditions

Sub-Experiment NIR spectra of opal-CT 521 at low temperature

Spectrum NIR spectrum of opal-CT 521 at low temperature Spectrum NIR spectrum of opal-CT 521 at low temperature

Sub-Experiment opal-CT 1085: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-CT 1085 in ambient conditions

Spectrum NIR spectrum of opal-CT 1085 under ambient conditions Spectrum NIR spectrum of opal-CT 1085 under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1085 at low temperature

Spectrum NIR spectrum of opal-CT 1085 at low temperature Spectrum NIR spectrum of opal-CT 1085 at low temperature

Sub-Experiment NIR spectra of opal-CT 1085 at low pressure

Spectrum NIR spectrum of opal-CT 1085 at low pressure Spectrum NIR spectrum of opal-CT 1085 at low pressure

Sub-Experiment opal-A 1543a: Tamb, low T

Sub-Experiment NIR spectra of opal-CT 1543a in ambient conditions

Spectrum NIR spectrum of opal-CT 1543a under ambient conditions Spectrum NIR spectrum of opal-CT 1543a under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1543a at low temperature

Spectrum NIR spectrum of opal-CT 1543a at low temperature Spectrum NIR spectrum of opal-CT 1543a at low temperature

Sub-Experiment opal-CT 1543b: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-CT 1543b in ambient conditions

Spectrum NIR spectrum of opal-CT 1543b under ambient conditions Spectrum NIR spectrum of opal-CT 1543b under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1543b at low temperature

Spectrum NIR spectrum of opal-CT 1543b at low temperature Spectrum NIR spectrum of opal-CT 1543b at low temperature

Sub-Experiment NIR spectra of opal-CT 1543b at low pressure

Spectrum NIR spectrum of opal-CT 1543b at low pressure Spectrum NIR spectrum of opal-CT 1543b at low pressure

Sub-Experiment opal-CT 1543d: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-CT 1543d in ambient conditions

Spectrum NIR spectrum of opal-CT 1543d under ambient conditions Spectrum NIR spectrum of opal-CT 1543d under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1543d at low temperature

Spectrum NIR spectrum of opal-CT 1543d at low temperature Spectrum NIR spectrum of opal-CT 1543d at low temperature

Sub-Experiment NIR spectra of opal-CT 1543d at low pressure

Spectrum NIR spectrum of opal-CT 1543d at low pressure Spectrum NIR spectrum of opal-CT 1543d at low pressure

Sub-Experiment opal-CT 1548: Tamb, low T

Sub-Experiment NIR spectra of opal-CT 1548 in ambient conditions

Spectrum NIR spectrum of opal-CT 1548 under ambient conditions Spectrum NIR spectrum of opal-CT 1548 under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1548 at low temperature

Spectrum NIR spectrum of opal-CT 1548 at low temperature Spectrum NIR spectrum of opal-CT 1548 at low temperature

Sub-Experiment opal-CT 1551: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-CT 1551 in ambient conditions

Spectrum NIR spectrum of opal-CT 1551 under ambient conditions Spectrum NIR spectrum of opal-CT 1551 under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1551 at low temperature

Spectrum NIR spectrum of opal-CT 1551 at low temperature Spectrum NIR spectrum of opal-CT 1551 at low temperature

Sub-Experiment NIR spectra of opal-CT 1551 at low pressure

Spectrum NIR spectrum of opal-CT 1551 at low pressure Spectrum NIR spectrum of opal-CT 1551 at low pressure

Sub-Experiment opal-CT 1552a: Tamb, low T, low P

Sub-Experiment NIR spectra of opal-CT 1552a in ambient conditions

Spectrum NIR spectrum of opal-CT 1552a under ambient conditions Spectrum NIR spectrum of opal-CT 1552a under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1552a at low temperature

Spectrum NIR spectrum of opal-CT 1552a at low temperature Spectrum NIR spectrum of opal-CT 1552a at low temperature

Sub-Experiment NIR spectra of opal-CT 1552a at low pressure

Spectrum NIR spectrum of opal-CT 1552a at low pressure Spectrum NIR spectrum of opal-CT 1552a at low pressure

Sub-Experiment opal-CT 1552b: Tamb, low T

Sub-Experiment NIR spectra of opal-CT 1552b in ambient conditions

Spectrum NIR spectrum of opal-CT 1552b under ambient conditions Spectrum NIR spectrum of opal-CT 1552b under ambient conditions

Sub-Experiment NIR spectra of opal-CT 1552b at low temperature

Spectrum NIR spectrum of opal-CT 1552b at low temperature Spectrum NIR spectrum of opal-CT 1552b at low temperature

Sub-Experiment opal-A 1039: Tamb, low T

Sub-Experiment NIR spectra of opal-A 1039 in ambient conditions

Spectrum NIR spectrum of opal-A 1039 under ambient conditions Spectrum NIR spectrum of opal-A 1039 under ambient conditions

Sub-Experiment NIR spectra of opal-A 1039 at low pressure

Spectrum NIR spectrum of opal-A 1039 at low pressure Spectrum NIR spectrum of opal-A 1039 at low pressure

Sub-Experiment opal-CT VTB: Tamb, low P

Sub-Experiment NIR spectra of opal-CT VTB in ambient conditions

Spectrum NIR spectrum of opal-CT VTB under ambient conditions Spectrum NIR spectrum of opal-CT VTB under ambient conditions

Sub-Experiment NIR spectra of opal-CT VTB at low pressure

Spectrum NIR spectrum of opal-CT VTB at low pressure Spectrum NIR spectrum of opal-CT VTB at low pressure

Sub-Experiment opal-CT WT86: Tamb, low P

Sub-Experiment NIR spectra of opal-CT WT86 in ambient conditions

Spectrum NIR spectrum of opal-CT WT86 under ambient conditions Spectrum NIR spectrum of opal-CT WT86 under ambient conditions

Sub-Experiment NIR spectra of opal-CT WT86 at low pressure

Spectrum NIR spectrum of opal-CT WT86 at low pressure Spectrum NIR spectrum of opal-CT WT86 at low pressure

Sub-Experiment opal-CT YM12: Tamb, low P

Sub-Experiment NIR spectra of opal-CT YM12 in ambient conditions

Spectrum NIR spectrum of opal-CT YM12 under ambient conditions Spectrum NIR spectrum of opal-CT YM12 under ambient conditions

Sub-Experiment NIR spectra of opal-CT YM12 at low pressure

Spectrum NIR spectrum of opal-CT YM12 at low pressure Spectrum NIR spectrum of opal-CT YM12 at low pressure

Sub-Experiment opal-CT FT1111: Tamb, low T

Sub-Experiment NIR spectra of opal-CT FT1111 in ambient conditions

Spectrum NIR spectrum of opal-CT FT1111 under ambient conditions Spectrum NIR spectrum of opal-CT FT1111 under ambient conditions

Sub-Experiment NIR spectra of opal-CT FT1111 at low pressure

Spectrum NIR spectrum of opal-CT FT1111 at low pressure Spectrum NIR spectrum of opal-CT FT1111 at low pressure

Sample

Name: A-785

Owner of sample

Database

GhoSST

Experimentalists

Boris Chauviré

Origin of sample

Date: 2017-01-01

Body name: Earth
Terrain type: mineral surface
Place: Honduras , Honduras

Physical characteristics

Thickness: 250.0 $\pm$ 5.0 ${\mu}m$
Sample changes: Exposed to low temperature, water molecules in opal crystallize, inducing significant variation in shape and position of the bands at 5200 cm-1 and 7000 cm-1

Sample environment: Temperature

Temperature: -36.4 $\pm$ 3.0 $^{\circ}C$
Comments: temperature deduced from the ice-related NIR bands observed in the sample (temperature measured in the cell = -89.8°C)

Sample environment: Fluid

Type: ambient air
Fluid temperature: 20.0 $\pm$ 3.0 $^{\circ}C$
Fluid pressure: 1.0 $\pm$ 0.05 $bar$

Documentation and publication

Publications

Chauviré et al., 2021, Earth Planet. Sci. Lett., 576, 117239

Layers in sample

Number

1

Layers

Layer #1 , 250.0 ${\mu}m$