crystal ~ a stone which brings mental focus, purifies mentally/physically/spiritually, excellent for meditation, brings harmony to the soul.
 
tigers eye ~ a stone of protection, brings good luck to the wearer. has the power to focus the mind, bring clear thinking & insight. think of the qualities of a tiger, patient, focused, determined, alert, with perfect timing.
 

~~ crystal healing is meant to be used in conjunction with, not in place of traditional medical care