Gem Magic guides the reader through the uses of and stories surrounding a cornucopia of stones, including how each stone is formed and what beliefs (both occult and scientific) have been associated with it.

Precious stones, gems and crystals have been valued throughout history not only for their rarity and expense, but for their mystical properties too. Garnet is rumoured to stimulate the heart, while the pearl offers the protection of the goddess Diana – coral, so-called ‘witch-stone’, is said to guard against the evil eye, and amethyst is said to prevent drunkenness.