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What chalk looks like under the microscope, and other chalk curiosities from NPR’s Robert Krulwich

What chalk looks like under the microscope, and other chalk curiosities from NPR’s Robert Krulwich

7-15-2012
2,347 notes
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  8. undeadoctopus reblogged this from abluegirl and added:
    Coccolith plates of calcium carbonate arranged in a sphere.
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    What chalk looks like under the microscope..
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    looks like some kind of eldritch horror blob covered in fangy mouths.
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