http://www.crystalinks.com/mexicocrystals.html
The Naica Mine of Chihuahua, Mexico, is a working mine that is known for
its extraordinary crystals. Naica is a lead, zinc and silver mine in
which large voids have been found, containing crystals of selenite
(gypsum) as large as 4 feet in diameter and 50 feet long. The chamber
holding these crystals is known as the Crystal Cave of Giants, and is
approximately 1000 feet down in the limestone host rock of the mine. The
crystals were formed by hydrothermal fluids emanating from the magma
chambers below. The cavern was discovered while the miners were drilling
through the Naica fault, which they were worried would flood the mine.
The Cave of Swords is another chamber in the Naica Mine, containing
similar large crystals.
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://www.xanadu.com.au/ Chief Scientist, Xanadu
http://www.glasswings.com.au/ Partner, Glass Wings
http://www.sericyb.com.au/ Manager, Serious Cybernetics
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