Smithsonian Rock And Gem Dig
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10.5" x 2.2" x 11.8"
- Test for hardness
- Test for streak
- Learn how rocks and minerals are formed
- Have fun with an archeological dig
- Detailed instructions
- Ages 8-15
- Brand new
Have fun with archeology as you dig for semi-precious gemstones and minerals. Identify your found treasures, test for hardness and streak and learn how rocks and minerals are formed. Another Smithsonian educational adventure they'll never forget.