This is a bit dated, but I don't remember hearing anything
about it before. Back in January BBC did a show on Naica and the
giant gypsum
crystals. <http://news.bbc.co.uk/2/hi/science/nature/8466493.stm>
It is available on
DVD: <http://www.bbcshop.com/History/How-Earth-Made-Us-DVD/invt/bbcdvd3147>.
Mark Minton
Please reply to mmin...@caver.net
Permanent email address is mmin...@illinoisalumni.org
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