Bloodstone, also known as heliotrope. Heliotrope is a Greek word helio, which means Sun, and tropos, which means towards the Sun. This stone represents the power of protection and strength. Bloodstone is a chalcedony mineral, a cryptocrystalline form of silica composed of morganite and quartz. Bloodstone is a green-colored gemstone with red spots on it, and it resembles its name.