Stuff that Looks Like Opal - Geological, Biological & Man-Made Opal Impostors
22:16
Why don't ALL Opalised Fossils look like Opal? - Australian Opal Centre, Lightning Ridge
13:15
Opal of the World - Mexico, Ethiopia, Tanzania - A World Tour of Opal, Part 2
13:51
Growing Gemstones Growing a real opal at home and we cut it!
17:39
WHAT IS OPAL WORTH | Kelly Tishler | The Opal Queen
10:33
What are doublets, triplets and mosaic opal? Opal Words at Lightning Ridge
16:00
Unboxing Exotic Lab-Made Gemstones | Laser Rubies & More!
16:56
How To Make Ruby in a Microwave
14:33