Superb color photographs of crystals, jewels and gemstones of every color, size and shape offer a unique "eyewitness" insight into their extraordinary beauty and variety. See a crystal growing, diamonds used to cut through a brick wall, a phantom crystal, gemstones formed in a volcano, and crystals of gold and silver. Learn how a quartz watch works, how to identify crystals, why crystals have been grown in space, how crystals are used healing, and more.