I must agree with Anne on this one. Most (almost all) of my micrographs on my Meteorite Times Meteorite Micrograph Gallery were of thin sections loaned from Jeff Hodges. He and Anne combine efforts getting the best thin sections in the world made.
Because of the relatively high magnification I use, Jeff arranged for the polished (uncovered) thin sections to all be polished to 1/4 micron on both sides. With out this level of quality, those eye popping images would not be possible. So this is an endorsement of Anne's thin sections and not an ad. That being said, making thin sections is kind of a fun challenge that every one should try at least once. I have made several to get a quick look at some thing but I must admit, I have never been able to get a good micrograph from any of my handy work. Tom Phillips In a message dated 5/21/2010 5:50:42 P.M. Mountain Daylight Time, [email protected] writes: Yes Ed, As Ryan explained, thin-sections must be exactly 30 microns thick, not 29 or 31, and from edge to edge, not just here and there. If you don't have the specialized and very expensive equipment you will waste a lot of material and a great deal of time. May I suggest buying those thin-sections ready made, by the world expert in thin-sections? And yes, I do have the largest selection. Should this be considered an Ad? or public information? ;-) Anne M. Black _http://www.impactika.com/_ (http://www.impactika.com/) [email protected]_ (mailto:[email protected]) Vice-President, I.M.C.A. Inc. _http://www.imca.cc/_ (http://www.imca.cc/) In a message dated 5/21/2010 4:25:21 PM Mountain Daylight Time, [email protected] writes: Hi Ed, Thin sections are a bunch of work and have to be withing pretty strict parameters to let light through correctly. Although I've never made one myself before, I have friends whom have had to make hundreds for their masters/PhD projects and its pain, unless you like grinding, glueing, grinding. When done correctly, and with polarized light, the results (depending on the minerals) can be absolutely astounding natural work of art. Here's a link I came across on how to make one. http://almandine.geol.wwu.edu/~dave/other/thinsections/ good luck! If you don't feel you're up to the task of making them, you can send rock/meteorite samples to be made for you, but of course its money, and the wait can be pretty long (months) to get them back. -ryan ______________________________________________ Visit the Archives at http://www. meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
