Grey Ochre pigment from Coloured Earth is a dark grey, natural oxide, earth pigment from France.
Pigment Name: Grey Ochre �?139
Pigment Type: Natural Earths & Ochres
Country of Origin: France
Colour Index: BK11
Density: 750 g/l
Chemical Make-up: Black Iron Oxide
Chemical Formula: Fe2O3+SiO2+Al2O3+CaO+MgO
Lime Stable? Yes
Suitable for External Use? Yes
UV Rating: Good
Colouring Power: Very Good
Particle size: 50 microns (325 Mesh)
Heat Stability: Colour Stable to 165°C / 330° F
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