Coloured Earth's Burnt Umber, is a natural brown pigment extracted from a quarry in France.
Pigment Name: Burnt Umber – 115
Pigment Type: Natural Earths & Ochres
Country of Origin: France
Colour Index: Br7
Chemical Make-up: Natural Iron Oxide
Chemical Formula: SiO2+Al2O3+Fe2O3+Fe3O4
Lime Stable? Yes
Suitable for External Use? Yes
UV Rating: Excellent
Colouring Power: Very Good
Particle size: 50 microns (325 Mesh)
Heat Stability: Colour Stable to 165°C / 330° F
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