In Glittering Gems, Reading Earth’s Story
“It has taken a while for geologists to decode the cookbook for gems. Jade, for example, puzzled geologists for decades. “For a long time people looked at this crazy rock, and it didn’t make any sense,” said George Harlow, a geologist at the American Museum of Natural History. But thanks to the research of Dr. Harlow and other geologists, jade now has a back story.”
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A Pun Involving Travel 