Origin: Australia

Description: I'll be entirely honest with you, there is like... no colour in these. However, some of the opals in here will react under UV Light.

Chemical Composition:  SiO₂·nH₂O

Grade: Lapidary Grade
Appearance: Opaque
Inclusions: Lots of Matrix

Cost per Gram: $0.08
Approximate Size of 1 pc: 73mm x 52mm x 29mm
Approximate Weight of 1 pc: 50-350g

Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.