Grow A Yellow Crystal

Thames and Kosmos


This product is currently sold out.

Grow sparkling, yellow crystals overnight from a safe solution of potassium aluminum sulfate. Single out the largest crystal shard, redissolve the remaining crystals, and repeat the crystal formation process to grow a larger, more striking crystal. These kits include all the materials and tools you need to grow a single crystal, as well as a small hexagonal storage box in which to keep your crystal safe. Also available in blue, green, and pink.

  • 6-8 years
  • 9-12 years
  • Rocks & Minerals

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