Pigment Name: Polysulfide of Sodium Alumino Silicate, Polysulfide of Sodium Alumino-Silicate
Lightfastness: ASTM I - Excellent
Opacity: Transparent
Grind: Very Fine
Series 2

After testing dozens of samples from around the world we finally found one that fits our requirements. Beautifully transparent, rich, deep, with a hint of red in the undertone.