MEXICO: ‘ Cave of Caves ‘

#AceHistory2ResearchNews – MEXICO:Dec.21- Mexico’s Cave of Crystals stunned geologists when it was first discovered in 2000. The underground chamber contains some of the largest natural crystals ever found – some of the selenite structures have grown to more than 10m long. Professor Iain Stewart got a rare glimpse of the subterranean spectacle while filming for the new BBC series How the Earth Made Us. BBC News – http://news.bbc.co.uk/1/hi/8466493.stm

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