Giant gypsum selenite crystals in the "Cave of Crystals"
Stunning, giant crystals made of gypsum selenite in the Cave of the Crystals in Mexico—300 meters below ground. They are considered to be the largest natural crystals in the world.
Image by Alexander Van Driessche / Wikimedia Commons / CC BY 3.0
Posted to Monolithic Dome Gypsum Storages
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