ochre
Instance URI: http://resource.geosciml.org/classifier/cgi/commodity-code/ochre
Within scheme: South Australian Commodity Codes
Ochre is a natural earth pigment containing hydrated iron oxide, which ranges in color from yellow to deep orange or brown. It is also the name of the colors produced by this pigment, especially a light brownish-yellow. A variant of ochre containing a large amount of hematite, or dehydrated iron oxide, has a reddish tint known as "red ochre".