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    Rare cave pearls fill dried-out terrace pools in Hang Son Doong, Vietnam. This unusually large collection of stone spheres formed drip by drip over the centuries as calcite crystals left behind by water layered themselves around grains of sand, enlarging over time.

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    Cave Collection / End of Century

    Cave Calcite

    Hang Song Doong (Mountain River Cave), Vietnam

    This is what sand looks like when magnified 100 to 300 times.

    cave pearls

    Oolites or cave pearls are sedimentary rocks formed from ooids, spherical grains composed of concentric layers

    Calcite “Cave Popcorn” formation - Arizona

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    Viet Nam. Son Doong Cave | Scientists have discovered never-before-seen plant species around Son Doong's waterfalls. Oh, and there's a whole river in there, too.

    Grains of sand magnified to 250 times real size.

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    Sand under a microscope. You will never look at sand the same way ever again :)


    Stalagmite, Yanks Cave, Waitomo, New Zealand

    *Son Doong Cave*, Vietnam ~ The Largest Cave in the World ✯

    The giant obelisks are formed from groundwater saturated in calcium sulphate which filtered through the cave system millions of years ago

    Snow White Cave Aragonite Stalactite Mexico by FenderMinerals,

    Wheat : Prosperity and wealth

    small scale sinter terraces

    microscopic sand grains