Origin: Queensland, Australia
Opal Type: Solid Boulder Opal
Shape: Oval
Cut: Cabochon
Color: Rainbow
Pattern: Matrix
Size (mm): 18x13x6
Weight (ct): 12.2
Brightness rating (1-5): 3
Transparency: Opaque
MOHS Hardness: 5.5 – 6.5
Treatment: Non-treated
GbG ID: BO66