Item # 6122: CRYSTAL CAVE 13 Crystal Clusters, Geodes, and Single Crystals
Grow 13 sparkling crystal clusters, geodes, and single crystals up to 8″ (20 cm) in diameter. Discover a “CRYSTAL CAVE” over 2,400 feet (800 meters) below the Earth's surface. Learn how crystal salts and casting plaster are mined. Mix the casting plaster with water, and make your very own geode shells. Add water to the crystal salt, heat it up (no more boiling hot water required – patented process uses only solutions below 132°F / 55°C), and grow your very own crystal clusters, geodes, right before your eyes. A fascinating, fun and easy hands-on activity kit for ages 10 and up.