Mystic quartz is quite a new gem type, first seen around 1998. It is natural colorless (white) quartz that has been coated, giving it a unique rainbow color effect. Therefore, it is not a gem type, but is an enhanced clear quartz. Mystic quartz usually appears to display rainbow colors, with greens, blues and purples being quite prominent. 

Mystic quartz provides serenity and peace during meditation, deepening one's attunement to the Divine and opening gateways to the angelic realm. They assist in remembering lessons from past incarnations and expand the awareness of one's spiritual purpose for this lifetime.

Clearer thinking improves overall health, and the ability to trust others is encouraged as clarity provides understanding and insight into those around you.

View all Mystic Quartz Gemstone Jewelry here https://4ashoponline.com/search?q=Mystic%20Quartz

sources: 

https://www.gemselect.com/

https://www.gemstone7.com/

https://www.crystals-online.co.uk/