polished carnelian crystal
Carnelian is full of the life force and vitality. It stimulates the metabolism. Carnelian activates the sacral chakra, influences the female reproductive organs, and increases fertility. This stone overcomes frigidity and impotence, heals lower back problems, rheumatism, arthritis, neuralgia, and depression, especially in those of advanced years. It regulates bodily fluids and the kidneys, accelerates healing in bones and ligaments, and stanches blood. Carnelian improves the absorption of vitamins and minerals and ensures a good supply of blood to organs and tissues.
Excerpt from The Crystal Bible by Judy Hall