Geodes on the Half Shell Materials

A plastic eggshell is used to simulate the gas pockets that are found in some lava flows. Copper sulfate crystals in solution will represent minerals dissolved in ground water. This “ground water” will then be added to your eggshell. When the water evaporates, a genuine, simulated geode lined with beautiful robin’s egg blue crystals will remain.

Demo Pack includes 1 geode, 2" diameter; 7/8 oz vial copper sulfate; 1 portion cup; 1 craft stick; 1 eggshell, plastic 

Study Group pack includes 1 geode, 2" diameter; 4 7/8-oz vials copper sulfate; 4 portion cups; 4 craft sticks; 4 eggshells, plastic 

Classroom Pack includes 1 geode, 2" diameter; 10 7/8-oz vials copper sulfate; 10 portion cups; 10 craft sticks; 10 eggshells, plastic  

Party Pack includes 1 geode, 2" diameter; 32 oz copper sulfate; 64 portion cups; 64 craft sticks; 64 eggshells, plastic  

Find the Lesson Plan Here