The Ocean's Most Important Crystal

When we think of the ocean and what's in it, you probably think of stuff like fish, or salt, or seaweed. But there's a crystal that is so vital to marine life that they take dissolved materials in that salty water and build it themselves. This month's Rocks Box video, we're talking aragonite!

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Hosted by: Hank Green (he/him)
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Sources:
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Images:
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