What is a Grain of Sand, Really?
We’re used to seeing grains of sand almost everywhere we go, but what most of us don’t know is that every tiny grain of sand is a jewel, waiting to be discovered. When Dr. Gary Greeneberg first turned his microscope on beach sand, he found gem-like minerals, colorful coral fragements, and microscopic, jewel-like shells that all reveal that sand is much more then just little brown rocks.
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