Harsh Minerals Katni, Madhya Pradesh

We deal in various range of minerals in their different forms. Ochre and the earth pigments yellow ochre, feo(oh)·nh. . Red ochre, fe. Purple ochre, is identical to red ochre chemically but of a different hue caused by different light diffraction properties associated with a greater average particle size. Brown ochre, also feo(oh), (goethite), is a partly hydrated iron oxide.