Opal Freeform - Height: 75 mm - Width: 30 mm- 25 g - (1)

Freeform set on a Boulder opal Koroit chain from Queensland.
Weight 25 grams.
The stone measures 75 x 30 x 10 mm.

Koroit opals belong to the Boulder opal family and are extremely rare. They formed through deposits of silica-rich water that became trapped inside iron minerals called Matrix.
Koroit opals are highly sought after for their intricate patterns where the earth tones and crystal colors merge into wonderful structures that have inspired Aboriginal art since prehistoric times, and for this reason they are called "tribal patterns".
Australian Boulder opals are a precious gemstone that gains value over time and will add prestige to your collection.