37.5 cts Rough Black Opal Lightning Ridge for Carving

Item description

Gemstone Type: Rough  Opal

Weight: 37.5 cts

Dimensions: L 29.1 mm x W 27.8 mm x H 7.5 mm

Colour:  Blue/Green

Gemstone: Australian Opal

Uses: Carving

Treatments: None

Origin: Australian Solid Opal Rough Lightning Ridge

Water is sprayed on the opal to simulate a polished stone