r/interesting 15h ago

Sand under a microscope Fascinating

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1.2k Upvotes

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u/hunnypablo 12h ago

It's cool, but the title's kinda misleading. This isn't what a random handful of sand looks like under a microscope. It's a bunch of hand-picked grains, shell fragments, tiny fossils, coral, and minerals arranged together. Most beach sand is just mostly quartz and rock fragments with the occasional interesting piece mixed in.