How to Identify a Rock: App Edition
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I Cut Open Random Rocks to See What's Inside
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Rock Tumbling Rainbow Obsidian!
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How To Identify Gold In Rocks
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Rock and Mineral Identification
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Can Your Phone Identify a Rock?
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Ordinary Beach Rock Turns Into a Fabulous GEMSTONE!
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Rock Identification with Willsey: Intro to rock types and useful ID tips
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