Literally green earth, in the world of lakes, mars colours, phthalo's this is a gentle giant, very low tinting power but great because of that, almost essential for the portrait painter.
Michael Harding - "A complex of Ferrous Silicates in Aluminium and Magnesium clays, is one of the few naturally-occurring inorganic pigmentsstill to be offered by colourmen. It has a very soft texture with very low tint power, beloved of portraitists who use it as a glaze over Alizarin Crimson hues. Some makers add other pigments in order to give it a spuriously enhanced tint power which annuls these qualities. I do not."
Fast Drying. Transparent. Excellent Drying. Average Oil Content.