In the year 2000, the “Cave of the Crystals” was discovered by miners excavating a tunnel for the Naica Mine in Mexico. The main chamber contains some of the largest natural crystals ever found in any underground cave. What are the mysteries of inner Earth? http://atlanteangardens.blogspot.com/2016/04/secret-subterranean-worlds-of.html
Robert Sepehr is an anthropologist and author
(books also available through other book outlets)
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