Sapphire Mining in Montana
17:21
A tour of the mine with Deb Thompson
28:44
Finding Sapphires at Two Sapphire Mines in Montana
20:06
An Expedition through the Sapphire Mining localities of Montana - vlog
19:45
Massive Smoky Quartz Pocket Pt 1
28:11
Montana Blue Jewel Mine
17:42
Heat Treating Montana Sapphire
7:15
Heat Treating Montana Sapphires at Home?
3:57