Grow a beautiful, colorful 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.

Ages: 8+
Experiments: 3
Piece Count: 7
Manual Pages: 10
Product Dimensions: 7.4 x 8.8 x 2.3 in.
Product Weight: 0.8 lb
Manual Dimensions: 3.5 x 3.5
Batteries Required: N/A