Art Spectrum® Dry Ground Pigment Viridian.
A cool blue-green pigment made of hydrated chromium oxide.
Viewed under a microscope, Viridian pigment particles look similar to fragments of Emerald gemstone.
A transparent synthetic inorganic pigment with excellent lightfast properties.
|Series||Colour Index||Chemical Description||Classification||Opacity||ASTM|
|4||PG18||Hydrated Chromium Hydroxide||Synthetic Inorganic||Transparent||ASTMI|
ASTM Approved Permanent Colours American Society for Testing and Materials, conforming to standard D4302-90.