Ruby is a powerful stone to shield against negative energy, psychic attack, and energy vampirism, especially of the heart energy. Working with Ruby one may feel that all sense of limitation has been removed, strengthening courage, joy, leadership qualities and selfless work in all spiritual endeavors. Copper can conduct electrical impulses and magnify the energy transfer, from the healer or from minerals, to the subject of the healing. Copper can combat lethargy, passivity, restlessness, excitability, and non-acceptance of oneself. It stimulates initiative, optimism, diplomacy, and independence. As a conductor of energy, when used with earthly crystals it intensifies, enhances and channels their properties. Copper is thought to assist the body with repairing tissues, oxygenating the blood, easing arthritis, strengthening the female reproductive system and increasing vitality.