1.Previous
3.Next

also called gold ochre.
* Red ochre, , takes its reddish colour from the mineral hematite, which is an iron oxide, reddish brown when hydrated.
* Purple ochre is a rare variant 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. Similarly, lepidocrocite

1.Previous
3.Next