Amethyst

 
Sample ID:
PK11315
Origin:
Natural mineral; Provenance: Brazil
Chemical Information:
Purple variety of the mineral quartz / SiO2
Sample Type:
Reference material
Description:
Powder sample (0-120 µ)
History of use:
Since antiquity
Sample Source:
Kremer Pigments
Alternative names:
C.I. Pigment White 27
Material Class:
Mineral pigments
Acquisition Conditions:
Current intensity: 10.60 µA
Tube voltage: 40 kV
Analysis time: 300 s
No filtering, air atmosphere