This enhancement is believed to be due to the effect it can have of balancing the Throat Chakra and enhancing communication between lower chakras (physical) and higher chakras (mental/spiritual). Blue quartz brings this sense of order to all things, and releases fear, bringing courage to one's life
 
Picture is an example, shapes and color will vary. Stones sold individually measure approximately 1/2" to 3/4"+ 
Blue Liberite Healing Properties