Sunstone faceted, is feldspar group, sometime it is also called aventurine feldspar, limited production and availability. The inclusions of red, orange or green platy crystals, which give it a metallic glitter. This quality of faceted sunstone is coming from Tanzania.
Black opal is Treated, from Ethiopia. It comes in great color of play. These opals are Hydrophane in nature, meaning they have ability to absorb water.
