Gem-Stones of the Seven Rays »

The doctrine that one of the Seven Rays of life or seven types of force, dwells in every form is clearly recognizable in the writings of Agrippa. To the esoteric student, precious stones are valuable as wave-meters transmitting psychic qualities. This book reveals and groups some forty-seven mineral species and varieties under the Seven Rays and shows how each can be used to aid the aspiring soul.