Crystal Geode Spark Experiment Kits is backordered and will ship as soon as it is back in stock.
Grow shiny crystals in this self-cast plaster cavity!
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.
Product Dimensions (in) 7.1 x 10 x 2.1
