Gray from Burgundy

 
Sample ID:
PK11362
Origin:
Natural mineral; Provenance: Burgundy, France
Chemical Information:
Fe2O3 + SiO2 + Al2O3 + CaO + MgO
Sample Type:
Reference material
Description:
Powder sample (0-80 µ)
History of use:
Since antiquity
Sample Source:
Kremer Pigments
Alternative names:
-
Material Class:
Earth pigments
Acquisition Conditions:
Excitation source: 785 nm
Laser spot size: 170 µm
Resolution: 7 cm-1
Laser power: 1 mW
Acquisition time: 100 ms