Experiment
Vis-NIR reflectance spectra of Beauregard pigments (PIG_0174_A): raw blocks, powders, polished plot and painted matter
Sub-Experiment
Painted on limestone
Spectrum
Vis-NIR reflectance spectrum of a thick layer of Beauregard pigment (PIG_0174_A_902) painted on limestone block
Spectrum
Vis-NIR reflectance spectrum of limestone block
Spectrum
Vis-NIR reflectance spectrum of a very thin layer of Beauregard pigment (PIG_0174_A_902, grains < 160 µm) painted on brown-grey limestone chip
Spectrum
Vis-NIR reflectance spectrum of brown-grey limestone chip
Chemical function
- Name
- Hydroxide anion
- Explicit name
- Hydroxide anion
- Comments
- mineral mineral anionic radical $(OH)^-$
- Formula
- $(OH)^-$
- Chemical formula
- (OH)-
- Structural formula
- [H][O-]]
- Charge
- -1
- Unpaired electrons
- 0
- Isotope mixture type
- terrestrial abundance