[272] - The Nature Company Guides: Rocks and Fossils, by Arthur B. Busbey III, Robert R. Coenraads, Paul Willis, and David Roots: Time Life Books, Australia, 1996.
Approval Status
Adopted by IAU
Approval Date
May 09, 2012
Origin
All colors of gemstones of the mineral corundum (except red, which is the gemstone ruby) are called sapphires.