|
Sample ID:
PK40260
|
Origin:
Mineral; Provenance: Tuscany, Italy
|
Chemical Information:
Natural ochre from Italy / Fe2O3*nH2O + Al2O3 MnO2 + SiO2 * (H2O)
|
|
Sample Type:
Reference material
|
Description:
Powder sample (0-120 µ)
|
History of use:
Since antiquity
|
|
Sample Source:
Kremer Pigments
|
Alternative names:
C.I. Pigment Yellow 43, PY43, Ochre
|
Material Class:
Earth pigments
|
|
Acquisition Conditions:
Excitation source: 785 nm
Laser spot size: 170 µm Resolution: 7 cm-1 Laser power: 11 mW Acquisition time: 200 ms |
