On offer is High-grade Gem quality Koroit Boulder Opal rough.
I have left this heart of a nut unsliced so the buyer can take the stone and cut it up as required
This is a unique Gem grade most is processed.
here is one of th efew chances to do what you want with the GEM
The pieces are wet to bring out their colours.
The Ruler is in millimetres.
Measurements are rounded down and approximated.
Colour: Please note the camera has been white-balanced to give more accurate colours. NO Photo Shopped enhancement.