Moon Glass - Opalite tumble stone

History and Uses
Opalite is not a form of Opal but a form of Fluorite that has opalescence, also known as Tiffany Stone. There are also glass beads called opalite.

Mystical and Healing Properties
Associated with the "third eye" chakra so used in meditation and for improving communication on all levels, especially the spiritual. Also noted to help in overcoming fatigue and aiding sexual prowess.