6.0 on the Mohs scale.
Sri Lanka (Ceylon), Myanmar (Burma), Madagascar, Germany, India, Tanzania, Brazil, United States, Mexico.
Orthoclase is an alkali feldspar occurring in a variety of colors, the most common being colorless.
Orthoclase is not enhanced.
More information on gemstone enhancements.
Copyright © 1995-2020 Gem Hut™. All rights reserved.