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Smithsonian Magic Rocks

Allows early learners to develop their scientific knowledge. You can use the kit to grow crystals quickly and easily, to heights of up to 4 inches. It comes with everything you need to grow your own magic rocks.

Recommended Ages 10+

Product Features:

  • Instant crystal growing kit
  • Boxed contents: 1 x Tank, 1 x  Background print, 1x Sticker sheet, Metallic Salts, Sodium Silicate, detailed instructions
  • Create brilliant underwater garden
  • Rock grow to different heights up to 101.6mm
  • Warning: Skin and eye irritant. Harmful if swallowed.

SKU: t63539