Many fabulous and important objects have been found inside of caves, but few of them can rival the truly gargantuan crystals resting beneath a mine in Naica, Mexico.
Engineers have developed a new material that stays liquid more than 200 degrees Fahrenheit below its expected freezing point, but a light touch can cause it to form yellow crystals that glow under ultraviolet light.
Many fabulous and important objects have been found inside of caves, but few of them can rival the truly gargantuan crystals resting beneath a mine in Naica, Mexico.
Engineers have developed a new material that stays liquid more than 200 degrees Fahrenheit below its expected freezing point, but a light touch can cause it to form yellow crystals that glow under ultraviolet light.