Skip to content

Rock Tumbler - Hobby Edition


Notify me when back in stock

Imagine taking dull, ordinary rocks and magically transforming them into sparkling gems. Now you can with this professional-grade tumbling set from Dr. Cool! Making beautiful gemstones is easy: Just add the polishing grit, water, and unpolished stones into the machine, set it, and wait. Within a few weeks you'll have your very own gleaming, beautiful 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.

Celebrating South Africa

 South Africa is the world leader in mining and mineral riches, accounting for 90% of the earth's platinum metals and around 40% of the world's gold.

Product Details

  • Long lasting motor, automatic shutoff timer, noise reducing leak-proof rubber barrel, and speed control settings
  • Includes 1 lb of semi-precious stones including amethyst, quartz, tigers eye, jasper, agate, and more
  • Includes 4 types of polishing grit
  • Includes jewelry fastenings so kids can make custom jewelry from their polished stones\
  • Discover with Dr. Cool is a name parents trust.  Founded by a teacher and a life-long rock hound back in 2009, Dr. Cool has won over 100 awards for the play value, educational content, and overall quality of their toys.