Red Ochre from Castille

 
Sample ID:
PK11584
Origin:
Natural mineral; Provenance: Castille, Spain
Chemical Information:
Natural red earth from Spain / SiO2 + Al2O3 + Fe2O3
Sample Type:
Reference material
Description:
Powder sample (0-120 µ)
History of use:
Since antiquity
Sample Source:
Kremer Pigments
Alternative names:
C.I. Pigment Red 102, PR102, Ochre
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: 250 ms