GEODES! What they are, how they form, and more with geology professor, Shawn Willsey
24:25
Rock Identification with Willsey: BASALT and its many varieties
26:39
ROCKHOUNDS l Outdoor Idaho
1:15:40
California Prospecting Part 1: XRF For Rare Earths, Uranium, Gold & Silver, & Geology Lesson
17:27
Minerals with Willsey: Hematite, Magnetite, Galena, and Pyrite
31:36
Rock Identification with Willsey: Volcanic Rocks (Tuff, Obsidian, Pumice)
23:36
"Old" Yellowstone in southern Idaho: amazing deposits of pyroclastic flows from explosive eruptions
14:33
I cut 33 geodes open! (crystals inside)
24:16