Raziel is the name of one of the lesser known archangels. (Most traditions do not even include an archangel Raziel).
The name Raziel means "Secrets of God"
Raziel is said to have an aura with all the colours of the rainbow. Clear Quartz can be used to tune in to his frequencies.
Raziel is the archangel of clairvoyance, the wizard and alchemist. He can assist with soul travel, and with spiritual and esoteric understanding (or understanding that is beyond rational understanding).