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Smithsonian Rock Tumbler
Turn ordinary stones into sparkling gemstones with the Smithsonian Rock Tumbler! This real working tumbler smooths and polishes rough rocks using abrasive grits and waterârevealing stunning natural colors and shine. A hands-on STEM geology kit perfect for aspiring rock collectors and jewelry makers ages 8+.
$41.99
Smithsonian Rock Tumblerâ
$41.99
Description
Turn ordinary stones into sparkling gemstones with the Smithsonian Rock Tumbler! This real working tumbler smooths and polishes rough rocks using abrasive grits and waterârevealing stunning natural colors and shine. A hands-on STEM geology kit perfect for aspiring rock collectors and jewelry makers ages 8+.
