g the word “minerals” in its broadest sense, Fifty Minerals that Changed the Course of History features the metals, alloys, rocks, and organic minerals and gemstones that humans have used as the building blocks of civilization.
Explore the amazing world of crystal power with this guide to 101 crystals that you can work with for health, harmony, and happiness. This illustrated guide introduces 101 crystals, arranged for easy identification in 12 sections by color.