Giant crystals found in Naica min in Chihuahua, Mexico stand up to 36 feet tall and have measured over three feet wide. NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team ...
These huge gypsum crystals in Mexico's Naica caves, some up to 12m long, have been growing for tens of thousands of years -- but scientists have only now discovered what's inside them. "We've ...
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