Skip to content

Spark: Crystal Geode - 3L Version

Original price $13.99 - Original price $13.99
Original price
$13.99
$13.99 - $13.99
Current price $13.99

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.