Ocher is one of the iron oxide pigments.
since the ancient times, it had been used for painting and probably is among the first minerals human has used so far.
even paintings drawn on remaining cave walls indicate some traces of Ocher along with other natural iron oxide pigments.
Ochers are accumulations caused by weathering which have been formed as weathered pellicles and crusts of different thickness. Ocher formation process consists of releasing Iron (III) and transferring it to the depth, then combining with silica.
in Iran, Ocher has been used as a pigment in emblishments, ceramic glazing and mud jugs since a long time ago.
nowadays, a wide range of Ocher applications in various industries such as chemical paint making, cement, plastic, paper, glasswork and ceramics, cosmetics, fertilizers , etc. has caused that humans strive to cultivate and utilize new sources of Ochers.
Ocher properties
surfacing, luminosity and kind are the main properties which determines it’s quality and industrial value. one of the main reason of buying and selling several kinds of Ocher micronized powder and limonite is their gladful coloring and applications in various construction industries. if you take a look at your surrounding, you will see that how cheerful and varied colors make our lives happier and bring us energy and tranquility. the presence of these colors in all appliances and industries around us is necessary. iron oxide ore is one of those raw materials with pigment properties which is available in markets in two forms of Ochers and limonite and is used in paints, construction materials including asphalt, brick, concrete and other materials and has natural color stability and durability
