[meteorite-list] Meteorite or Meteorwrong?

[Michael Fowler]

Most andesites have phenocrysts.  This one doesn't.  Still could be  
andesite, but maybe not.

Mike Fowler
Chicago



> Mark B.>>I'd have to say andesite (definitely not granite). <<

>

> Well...after some page turning and googling etc, I have to now agree  

> with

> Mark that this rock is probably some sort of andesite...and  

> definitely not

> granite. I've never seen so many different rocks that I formerly  

> simply

> referred to as granite. :O) I haven't found a totally matching photo  

> of

> andesite to the photo eric referred to, but the literature gave me  

> the impression

> that andesite is what he has or is at least a good guess.

> GeoZay

>

>> Looks like a fine grained basalt covered with desert varnish.

>>

>> I see no fusion crust (flow lines etc.) and no regamaglypts. In the

>> cut surface, no metal, no chondrules, and no heat affected zone.

>>

>> Mike Fowler

>> Chicago