A Fact-Based Introduction to Crystal Healing. Whether you’re new to the practice of crystal healing or have a level of experience with it, chances are you have questions: What works? What doesn’t? How and when should I spend my money? And so on. Forget the magic, the mysticism, and the mythology. You’ve come to the right place for answers. Dan R. Lynch is the author of many books about rocks and minerals. Julie A. Kirsch is a trained psychologist. Together, they delve into the fascinating study of crystal healing, and they share their answers with you.