Rock Polisher with Rough Gemstones Rock Tumbler Kit Great Science Kit Gifts

💎 【ROCK POLISHER TUMBLER KIT ADULT】: Mother Nature polished that stone by gently washing it in water and sand or gravel until all the rough edgeswere smoothed away. Then the inner colors and unique composition of the stone were uncovered!

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Budding geologists can save up to 50% on these rock tumblers at

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