Definition: Iolite (from the Greek word for violet) is a colored gemstone found in a range of colors, including violet-blue, green, brown and grayish blue.
Iolite is rated at 7-7.5 on the Mohs scale of mineral hardness.
Iolite
By Carly Wickell, About.com Guide
See More About:
More Jewelry Terms
Precious Metals
Related Searches mohs scale of mineral hardness scale of mineral hardness colored gemstone violet blue grayish blue iolite
Explore Jewelry / Accessories
©2012 About.com. All rights reserved.
A part of The New York Times Company.