The Red ochre reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Red ochre

Red ochre is a red pigment that has been used since prehistoric times throughout the world.

Chemically, it is anhydrous iron (III) oxide.

The word ochros traces to Greek meaning yellow, pale yellow.

External links and references

• How to make red ochre

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