Caring for Crystals:
This page contains information about crystals that require extra care when handling.
It also contains information about the Moh's Scale, which indicates the hardness of a crystal.
Mohs Scale of Hardness
Crystals That Can Be Damaged By Water
Treated, Heated, and Man-Made Crystals
Check out more great information in our Beginner's Reference Guide!
Posted on December 19, 2013
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