The Encyclopedia of Crystals
	Crystal Power, Crystal Healing: The Complete Handbook
	Cunningham's Encyclopedia of Crystal, Gem & Metal Magic
	Love is in the Earth: A Kaleidoscope of Crystals - The Reference Book Describing the Metaphysical Properties of the Mineral Kingdom
	Crystal Therapy: How to Heal and Empower Your Life with Crystal Energy
	The Crystal Healer: Crystal Prescriptions That Will Change Your Life Forever