420 cts Australian Boulder Opal Rough Parcel

Item description

Weight:  420 carats

Dimensions: L 19.7-47.3 mm x W 20.5-37.0  mm x H 6.9-16.1 mm

Colour: Green/Blue

Quantity: 5 Stones

Origin: Australia

Uses: Pendant for Ring Gold or Silver Mounting

Gemstone: Australian Rough Boulder Opal 

Uses: Mineral Collection

Treatments: None

Water is sprayed on the opal to simulate a polished stone.