Kids will love to dig into the National Geographic Gemstone Mini Dig STEM Science Kit! A great way to introduce young explorers to geology and crystal science, this home science kit for kids lets them use a dig tool and brush to excavate a gemstone of their very own! The gemstone-shaped dig brick contains 1 of 3 gemstones – either a quartz, amethyst, or rose quartz – so every kit will be a

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