"Dig Into" Rocks and Geodes
Designed to be guides for budding collectors, GeoCentral's pocket-sized guides bring you into the world of discovering and collecting minerals. Two versions available: Dig Into Rocks and Dig Into Geodes.
Dig Into Rocks, Minerals and Crystals: Teaches a broad audience how rocks are formed; the geological history of the earth; how to identify rocks, minerals and crystals, and the differences between them.
Dig Into Geodes: Teaches a broad audience what geodes are and how they are formed; the differences between various types of rocks and crystals; and even how to grow your own crystals at home!