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National Treasures

National Treasures

Today marks the 100th birthday of America's National Parks Service. Help us celebrate by visiting the many National Parks sites on display in the Museum's dioramas. 

Tags: Theodore Roosevelt

Exquisite Emerald

Exquisite Emerald

The Patricia Emerald is among the world’s most magnificent uncut emeralds. “Only a small number of large emeralds have been saved, and we are indeed lucky to have one of the fabulous few,” says George Harlow, curator in the Department of Earth and Planetary Sciences. 

Tags: Minerals

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