Bloodstone is a green, opaque stone with spotted red flecks. It is a member of the cryptocrystalline quartz group, and is composed of silica. Bloodstone belongs to the general group of chalcedony and is found in India, Australia, Brazil, China and the US.
Bloodstone contains deep earth-green and a deep, blood red. Together these create a powerful cleanser for the physical body. It is an important purifier for the kidneys, liver, spleen and blood. In times past, bloodstone was used to stop bleeding and hemorrhage by wounded soldiers and mothers-to-be. It will detoxify the body. Bloodstone helps transform the body to enable it to carry more light and energy.
Legend has it that when Christ was crucified, the blood from his wound dripped to the green jasper ground, spotting it red and thus forming this stone. This stone was also known as heliotrope, and it was believed that if one covered the stone with the herb heliotrope, the owner became invisible. This combination was used in many other magical rites also.
SOURCE: Truth about Crystal Healing, Phyllis Galde