All About Minerals (A True Book: Digging in Geology) Discovering the Building Blocks of the Earth
Ripley Readers Level 2: Caves!
I'm Trying to Love Rocks
A Rainbow of Rocks
A Field Guide to Fossils
Usborne Beginners: Underground Animals
National Geographic Kids Nivel 2: Rocas y minerales (Level 2: Rocks and Minerals)
Barkerville and the Cariboo Goldfields
A Field Guide to Gold, Gemstone & Mineral Sites of British Columbia Vol. 2 Revised Edition: Sites within a Day's Drive of Vancouver
A Field Guide to Gemstones of the Pacific Northwest