Mining A Piece Of Rough Koroit Opal -

Mining a piece of rough Koroit opal -

A split piece of rough Koroit opal from The Comet opal mine

A colorful piece of rough conglomerate Koroit opal -

Mining Koroit opal with a jackhammer

Slicing rough Koroit opal from The Comet mine

Slicing a piece of rough Koroit opal from The Comet mine -

Breaking Rocks - Opal Mining at the Koroit Opal Fields

Slicing rough Koroit opal from The Comet opal mine

A trimmed piece of rough Koroit boulder opal showing opalized wood -

Opal Miners Find $8000 Worth Of Crystal Boulder Opal! | Outback Opal Hunters

Slicing gorgeous rough Koroit opal at The Comet

HUGE! 11,000 carat uncut gem opal gets carved to expose the top quality colors inside

Black Opal Direct

A colorful slice of rough Koroit opal -

Rough Koroit opal down in a tunnel at The Comet opal mine

Mining, Cutting & Polishing Koroit Boulder Opal

Christian D Watts

Black Opal Dark History Direct from the mines of Lightning Ridge Australia

Global Prospecting

Looking at a piece of rough Koroit opal I might slice tomorrow -

950 carat uncut gem rough opal - I'm going in!

Black Opal Direct

Boulder Opal Mining Koroit 2020

A flashy Koroit opal cab from The Comet opal mine -