Green Goldstone is a man-made stone. It is made with flecks of copper, which gives this stone similar healing properties. Green Goldstone helps heal the heart and helps with mental issues. Useful in color therapy. Metaphysical properties are provided for your information and are not meant to replace the advice of a qualified physician or medical practitioner. Due to the nature of this product, color, size, and shape will vary. Quarter is used for size reference.