Identifying Mineral Samples
10:22
Understanding Minerals
8:40
Mineral Identification
16:04
Identifying Minerals -- Earth Rocks!
27:15
The Most Misunderstood Concept in Physics
17:04
The Hidden Engineering of Landfills
22:33
Minerals with Willsey: Mineral Properties
32:44
The Closest We’ve Come to a Theory of Everything
40:24