Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Blue Metalic Pattern: Matrix Weight (ct): 85.95 Dimensions (mm): 49x23.5x7 Brightness Rating: Subdued Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated Setting: Drilled for pendant GbG ID: BO13