Thursday, November 14, 2013

RE: RE: Re: Re: [Geology2] Strange sandstone formation



May be Limestone, but it was a random find on a non trail route ,when I hike I follow my nose,eyes and ears. I accidently found it while going down a side canyon. And I have been there already not going back anytime soon. If Coral formed in limestone then its probably that.

Maybe next summer I will get to where it is again. In two weeks I am bicycling to southeastern Arizona on a tour won't be be back here till late March. 



---In geology2@yahoogroups.com, <fossrme@...> wrote:

 It does look a lot like coral.  Some of the structures have polygonal boundaries like colonial coral.  But if it really is sandstone that is a problem because the corals are made of calcium carbonate (as in limestone).  Might be good to take some dilute acid to drop on it and see if it fizzes - or better yet take a fragment and look closely at the structure under a magnifying glass.  If it is sandstone it will be gritty all the way through, but coral would show some structure under a close- inspection. 



---In geology2@yahoogroups.com, <linkerns@...> wrote:

Well, I have experience in invertebrate fossils and that looks like coral to me. I've found some of it near Coon
 
 


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