Rock and Gem Dig by Smithsonian. No specific number of gemstones per kit. Dig for small semi-precious gemstones and minerals and identify your treasures. Test for hardness and streaks. Product Dimensions (inches): 1.5 (L) x 6 (W) x 7 (H). For Ages: 8 to 14 year. 

Rock and Gem Dig

$25.00Price