Grow 13 sparkling Geodes, Crystal Clusters, and Single Crystals up to 8″ (20 cm) in diameter. Discover a hidden “CRYSTAL CAVE” over 2,400 feet (800 meters) below the Earth's surface. Learn how crystal salts and casting plaster are mined. CRYSTAL CAVE® is easy, fun and educational. Mix the casting plaster with water, and make your very own geode shells. Add water to the crystal salt, heat it up (no 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 hands-on activity kit for ages 10 and up. Crystals and crystal growing powder are biodegradable.
Contents: Crystal growing powder, geode mold, casting plaster, crystal growing containers, lids, stirring rods, caves booklet, instructions.
USA: Ages 10 +
WARNING: This kit contains chemicals which may be harmful if misused. Read cautions on individual containers carefully. Not to be used by children except under adult supervisions.
|Dimensions||11" height x 17" width x 2.25" depth|