Color Swatch created using heavy application/medium application/50% tint and was applied on acrylic primed canvas (7 oz) material.
hydrated aluminum silicate
Slate Gray is a semi-opaque, neutral gray pigment produced from powdered slate.
Slate Gray is absolutely lightfast.
Hydrated aluminum silicate is not considered toxic, however pigment from natural sources may contain impurities.
Mineral sources of Slate Gray have been used as a colorant since prehistoric times.