Romancing the Source: Big Sky Country Montana Sapphires
28:44
Finding Sapphires at Two Sapphire Mines in Montana
33:58
The Incredible Origins and History of the Inuit People
23:02
A New Ocean Is Forming in Africa
17:42
Heat Treating Montana Sapphire
15:48
Inside Gold Factory: Making of 99% Pure Gold Bars – Manufacturing process & Production
29:18
Mining topaz and aquamarine and building a mountain road | Mt. Antero Treasures S4:E1
14:11
Inside Africa's Food Forest Mega-Project
12:02