Right now you can score the National Geographic Mega Gemstone Dig Kit for only $19.87! My kids loved these sorts of kits when they were younger. Some other good options include the Mega Crystal Growing Lab for just $23.99 or the Mega Slime Kit & Putty Lab, also for $23.99.  

• DISCOVER CRYSTAL TREASURES – Give your child the thrill of digging in a real gem mine as they excavate real crystal treasures. This educational engaging activity emphasizes fun, exploration, and discovery!
• FIND 15 AMAZING GEMSTONES – Including pyrite, amethyst, tiger’s eye, fluorite, quartz, obsidian, aventurine, and more. Unlike other kids toys, the Mega Gemstone Dig Kit seamlessly blends educational value with fun!
• A COMPLETE LEARNING ACTIVITY – This Mega Dig Kit includes everything you need to keep kids digging and learning for hours, including a dig brick packed with gemstones, a chisel, a brush, and a magnifying glass to inspect these amazing specimens!
• 16-PAGE, FULL-COLOR LEARNING GUIDE – This full color, detailed learning guide illustrates how gemstones are formed and mined and helps young scientists identify each specimen as it’s discovered. Educational toys make science and learning fun, and are the perfect STEM gifts for boys and girls!
• SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you.

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