Lets Cut Boulder opal - DO NOT slice boulder opal this way!!
20:52
How to Slice Opal with a Dremel (Detailed Guide Slicing Opal)
11:58
Can we polish opal a bit faster by using this method? The result is impressive.
18:51
Selecting~Sawing and Cutting Boulder Opal
9:43
cutting opal away to find the color inside. Does it pay off?
27:11
SECRETS of BOULDER OPAL: An Aussie Miner Tells His Tale
6:05
Cutting and Polishing Boulder Opal ASMR
11:54
Watch me cut a $100 rough opal into a $2000 gem
5:12