One of the rarest stones on the market, REAL Terahertz will melt ice right before your eyes! It is quite difficult to obtain, so grab it before it's gone. (GEM CARD INCLUDED WITH PURCHASE) Terahertz is a health power stone. The power seems to reach every corner of the human cell bringing about "activation" to the human body. It works on weak cells to restore a normal state promoting immune power and natural healing to maintain beauty and health. Excellent for those who have fatigue and stress. Terahertz encourages positive thinking which leads to a relaxed state of mind.