The Curious Lore of Precious Stones / Being a description of their sentiments and folk lore, superstitions, symbolism, mysticism, use in medicine, protection, prevention, religion, and divination. Crystal gazing, birth-stones, lucky stones and talismans, astral, zodiacal, and planetary

by George Frederick Kunz

Sard

The sard was regarded as a protection against incantations and sorcery, and was believed to sharpen the wits of the wearer, rendering him fearless, victorious, and happy.[155] The red hue of this stone was supposed to neutralize the malign influence of the dark onyx, driving away the bad dreams caused by the latter and dispelling the melancholy thoughts it inspired.