Cave of the Crystals in Naica, Chihuahua, Mexico – A cave connected to the Naica Mine 300 meters (980 ft) below the surface. The main chamber contains some of the largest natural crystals ever found–giant selenite crystals Post author By adikaza Post date December 16, 2013 No Comments on Cave of the Crystals in Naica, Chihuahua, Mexico – A cave connected to the Naica Mine 300 meters (980 ft) below the surface. The main chamber contains some of the largest natural crystals ever found–giant selenite crystals Leave a ReplyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website