Smithsonian Rock Tumbler Books Each piece highlights the careful

Each piece highlights the careful craftsmanship that makes it both practical and decorative

portable deck that’s great for road trips

Includes tools and accessories such as plastic and metal molds

This baby mammoth features long

and crystals

Smithsonian Rock Tumbler Books Each piece highlights the carefulTurn rough rocks into beautiful, polished stones that you can use to make charms, bracelets, keychains, and more. Begin by tumbling the included rocks in a barrel with water and grit, then repeat this cycle using progressively finer grits. In just weeks, the Smithsonian Rock Tumbler mimics the process that takes oceans thousands of years! Turn rough rocks into beautiful, polished stones! Includes accessories to make charms, bracelets, and keychains.