About 19,000 years ago, a woman from a group of hunter-gatherers died and was buried in a cave in northern Spain. In 1996, ...

Zwerling says pigments, like iron oxide, rarely cause allergic reactions. "Iron oxide has been shown to be the safest pigment," he says. "Anything that is vegetable based, organic, or natural is ...

Water-based stains, being iron oxide pigment, have a much wider variety of color selection possibilities. Although they’re versatile, [water-based stains] can be finicky, because surface ...

Synthetic iron oxide pigments are inexpensive and there is a wide enough variety to achieve many desired earth tone colors. Naturally occurring ochres and umbers contain iron oxide along with ...

By Amy Felegy for Arts Midwest. Broadcast version by Terri Dee for Ohio News Connection reporting for the Arts Midwest-Public ...

and red iron oxide to make a red, plastic-like coating. The coating protected the wood and kept barns warmer in the winter. Soon, manufacturers began preparing paint with chemical pigments.