Red ochre is used as a paint pigment; a purified form, rouge, is used to polish plate glass.
Red Ochre

Is Ochre A Mineral
The oldest pigment in human history. Ochre is iron oxide bound in clay, dug straight from the ground. It was used to mark cave walls 100,000 years before anyone invented the word art. It comes out of the earth already the colour of earth, and no synthetic pigment made since has replaced it. Still sold. Still ground. Still used.
Hematite: mineral characteristics, properties, uses


Red Ochre Rocks
Ocre Rouge RFLES


The Cinnabar palette moves from dark iron oxide through cinnabar mineral, warm earth red, light sienna, and pale clay — natural mineral reds for artisan, craft, and earthy design.
Red Ochre Mine Wyoming
My experience with ochre, an extraordinary material
Ochre Sanctuary | Early Futures








Natural terracotta stone