Chrysoprase is a bright apple green, translucent stone, whose color often caused ancient jewelers to confuse it with Emerald. A cryptocrystalline Chalcedony, its brilliant color comes from the presence of very small inclusions of Nickel compounds, as opposed to the presence of Chromium which creates Emerald’s green color. Chrysoprase is believed to balance the heart chakra and help one understand their needs and emotions. Metaphysical attributes are fertility, renewal and prosperity. Chakra: Heart. Mohs hardness 6-7.