What Makes Rocks Red?

By Jane Stammer

Rocks are red when they contain the mineral hematite, which is an iron oxide that is similar to rust. Find out how iron forms a reddish hue when oxidized with help from a lab manager and research scientist in this free video on rocks.

About the Author

Jane Stammer is a lab manager and research scientist in the Advanced Mineralogy Research Center at the Colorado School Of Mines. Stammer has a master's degree in geology.