L'or Karat entre directement dans Aqua Regia Pt2
27:25
Karat Gold Going Straight into Aqua Regia Pt1
53:07
Geology Of A Gold Mine Season 2 Episode 14
14:42
When Cutting Opal Goes Fatally Wrong – $11,000 down the drain?
44:09
Four OZ Bar Amazing Melt Sequence MUST SEE
15:22
Why Have I Never Done This Before?
34:02
The shallow Bering Sea gold deposits are gone. We must dive deeper.
26:34
Pouring Gold From My New Gold Mine Season 2 Episode 12
45:55