Rock Identification with Willsey: Intrusive Igneous Rocks (granite, granodiorite, diorite, gabbro)
18:23
Rock Identification with Willsey: Volcanic Rocks (andesite, dacite, rhyolite)
28:20
Rock Identification with Willsey: Intro to Igneous Rocks!
19:17
Rock and Mineral Identification
11:30
What is granite? A geologist explains!
4:48
"GHIANDONE" GRANODIORITE
24:25
Rock Identification with Willsey: BASALT and its many varieties
30:07
55 Times Mother Nature Got Angry on Camera
19:26