Rarest Gems
Monday, Aug 31, 2020, 9:42 am
By:
Tony Williams
#12 Benitoite
Found at the head waters of the San Benito River in California, it is the sunshine state's official gem. Striking blue in color, it becomes fluorescent under UV light, which is not quite understood. The gem has been around since the turn of the century, and has also been unearthed in Arkansas, and Japan.
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