Thames & Kosmos Crystal Growing Experiment Kit
- Experiment with 4 chemically different crystals each with different properties, including potassium alum crystals that form regular octahedrons, rapidly growing sodium sulfate crystals, long needle-shaped sodium acetate crystals & plaster, which is made from gypsum crystals
- Mold fun plaster shapes & grow layers of crystals on them
- Use dyes to form colored crystals & mix the dyes to grow a rainbow of custom colored crystals
- Display your crystal creations in a clear treasure chest with a locking lid
- Mold your own geode
- Investigate solutions, crystallization & the chemistry of crystal growing
- Thoroughly tested & safe
- Age: 10 years & up
- Manufacturer's 1-year limited warranty
- For warranty information please click here
- Model number: 643522
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Due to its contents, this product cannot be shipped via our Priority Service or sent to Alaska, Hawaii, P.O. boxes, and/or APO/FPO military addresses.