Rock Tumbler

Dr. Cool

Regular price $79.99

Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems…now you can!

With the Hobby Rock Tumbler from Discover with Dr. Cool, making beautiful gemstones is easy! Just add the polishing grit, water, and unpolished stones into the tumbling machine and set the timer. The machine will polish your stones into beautiful, shining gems! There is no better way for boys and girls to learn about geology. This science kit will provide hours of fascinating science fun and comes with everything you need to start exploring the exciting hobby of rock tumbling.

This Science Kit includes:

• High-quality tumbling machine
• Noise-reducing rubber barrel with stainless steel lid
• Half pound of semi-precious stones including amethyst, quartz, tiger’s eye, jasper, agate, and more
• 4 grades of polishing grit
• Jewelry fastenings
• Adventure guide with educational information written by teachers
• Activity booklet with 10 puzzles and games to solve
• Easy-to-follow tumbling instructions
• 2-year manufacturer warranty