Thames & Kosmos Crystal Geode 551007
Grow a beautiful crystal geode, a hollow rock with crystals inside it, by first molding a plaster shell and then filling it with a crystal-forming solution. Learn about geological crystal formations.
- Item No. 551007
- Brand SPARK Subject Earth Science
- Age 7+
- Experiments 1
- Manual Pages 8
- Manual Dimensions (Inches) 3.5 x 3.5
- Manual Product Dimensions (Inches) 7.1 x 10 x 2.1