Description
Rublev Colours Italian Dark Ocher is hydrated iron oxide—the principal coloring agent in ochers. This color is based on the natural mineral goethite associated with varying proportions of other minerals such as clay, chalk, and silica. They differ from other ochers in that they contain water. In other words, the iron they owe their color is hydrated iron oxide. Natural yellow ochers are semi-opaque, permanent, and have good covering power.






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