The Basics of Mineral Identification
21:10
The Late Cenozoic Ice Age
30:10
Simple Steps to Master Mineral Identification Today
16:04
Identifying Minerals -- Earth Rocks!
19:17
Rock and Mineral Identification
37:07
Mineral Identification Mastery - How to Identify ANY Mineral!
18:58
Rock Identification Made Easy
11:47
Como identificar o ouro nas rochas? Encontrando Ouro Gratuito!
14:18