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Incredibly Colourful Magnified Grains of Sand
Viewed at an astounding magnification of over 250 times, tiny grains of  sand are surprisingly colorful and extremely unique. Each piece is  either a fragment of crystals, spiral fragments of shells or crumbs of  volcanic rock. To see these incredible images, Dr. Gary Greenberg goes through a  painstakingly lengthy process. First he takes many photos from different  points of focus. Then, he combines them using software to produce one  spectacular image. “It is incredible to think when you are walking on the beach you are standing on these tiny treasures,” says Greenberg.”
via http://sandgrains.com/ and ISI
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