[meteorite-list] Meteorite Micrographs: The Perfect Chondrule?

[Michael L Blood]

Hi Tom,
        As always, your work is a joy to behold!
        Best wishes, Michael



on 5/18/07 9:36 AM, Mike Groetz at mpg444 at yahoo.com wrote:

> http://www.coasttocoastam.com/gen/page2037.html?theme=light
> 
> My wife, Ginny Phillips has submitted some meteorite
> micrographs in the past that have been used (here &
> here). I thought you might get a kick out of these. I
> was surprised to see the level of interest and
> knowledge in the Coast to Coast audience. A lot of
> cool emails! 
> 
> Way back at the beginning of time (at least for our
> solar system) particles of space dust were forming in
> tiny balls, these balls formed larger masses which
> eventually combined to form planets. I think you could
> say that was the short version of the story!
> 
> Any way, meteorite rock (most stone meteorites) is
> made up of these hardened balls of dust called
> chondrules. The type class is based on the condition
> and abundance of these chondrules. Heat and shock
> alteration has erased evidence of chondrules to some
> degree in all meteorites. I like to look for
> chondrules that stand out from their matrix as
> different and look (at least visually) to be altered
> very little. 
> 
> These images are of two of these chondrules polished
> to 1/4 micron and viewed in reflected light and in
> their natural color. This may be as close as we can
> get to actually look at the dust balls that eventually
> built our planet.
> 
> --Tom Phillips 
> starsandscopes at aol.com
> meteorite.com/meteorite-gallery
> 
> 
> 
> 
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