Hi Yousef and list Sure its possible to have quartz crystals that have grown in the same rock as a fossil is found. Popular theory holds that quartz xtals grow from saturated fluids, so if the rock and fossil were subjected to water infiltration at some point, and the water contained silica in solution, if there was a "budding" nucleus (any crystaline form regardless of size), then a crystal would begin to form on that nucleus. Now, it is also possible that small individual crystals were present on the surface where the fossil finally rested and became part of the matrix along with the fossil. As long as metamorphism hasn't occured, which would alter the fossil, these are you most likely choices. Under metamorphism, you'd see any number of crystals of many rock species develope. Mark ----- Original Message ----- From: M Yousef <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, December 02, 2002 11:31 AM Subject: [meteorite-list] quarz and fossils
> > Dear All,,, > so long I have not posted anything to the list. I am sure you were better > off me, but I have a small Q: > is it possible to have large (few mm) single-crystalline quartz together > with fossils in the same rock? > > see those high quality pictures for example: > > http://AlifYaa.com/mf/mf.htm > > All The Best > > Yousef > ---------------------------------------------- > > > > > _________________________________________________________________ > Protect your PC - get McAfee.com VirusScan Online > http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
