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Re: a simple explaination of agate formation

Posted by: Michael Hatskel

Speaking of time...
Donald Kasper stated that agates "form very quickly (hundreds of years max time scale)".
Could someone please comment on whether the growth rate data is available that supports that?

Disclaimer: I am certainly not trying to figure out how to grow baseball-sized agates. :-) Just interested in the process kinetics.
A quick Google search on the subject returned the Min Mag 2009 paper titled "Crystallite growth kinetics in nanocrystalline quartz (agate and chalcedony)" [http://minmag.geoscienceworld.org/content/73/4/551]. It may have some data regarding the growth rates. I would appreciate if someone could send me the PDF.

Thanks in advance



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