Opal matrix: processing a parcel to the final cut.
52:34
Silversmithing: setting opal ain’t always easy.
47:05
Guess the yield % from this rough opal.
48:40
Andamooka matrix opal treatment.
43:34
Opal mining: Miners find crystal opal.
20:59
Homemade Faceting machine, Asian sapphire
16:58
I cut the other side of this unpolished gem black opal
18:32
Tumbling DOZENS of Lake Superior Rocks (Start to Finish)
12:11