Grow sparkling, colorful crystals overnight from a safe solution of potassium aluminum sulfate. Single out the largest crystal shard, redissolve th...
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A Klutz activity book with products to create wonderful things. Book & S.T.E.M kit with 36 rocks to start your collection. Have fun with miner...
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Excavate three real mineral specimens from a plaster block: quartz, amethyst, and pyrite (also known as fool’s gold!). Use tools like a real rock h...
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Create beautiful polished stones with this amazing Rock Tumbler! Make jewelry keepsakes for friends, family, and yourself. Start your tumbling adve...
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