Bohemian Green Earth

 
Sample ID:
PSC18519
Origin:
Mineral
Chemical Information:
Natural green earth; Hydrated iron, magnesium, aluminum and potassium silicates
Sample Type:
Reference material
Description:
Powder sample
History of use:
Since ancient times
Sample Source:
Schmincke (Series 18 - Pure artists’ pigments)
Alternative names:
C.I. Pigment Green 23, PG23, Green Earth, Terra Verde
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: 10000 ms