JimB88 Posted October 6, 2020 Share Posted October 6, 2020 Im guessing this is simply mineralogical, but I thought I'd put it up here to see what you guys think. Its an ironstone concretion from the lower Pennsylvanian. Its shot through with calcite, but its the black bits that are making me think it may actually be something. A close up of the interesting area. Link to comment Share on other sites More sharing options...
Top Trilo Posted October 6, 2020 Share Posted October 6, 2020 I'm not sure what it is but it looks really cool. Is it a hollow geode? “If fossils are not "boggling" your mind then you are simply not doing it right” -Ken (digit) "No fossil is garbage, it´s just not completely preserved” -Franz (FranzBernhard) "With hammer in hand, the open horizon of time, and dear friends by my side, what can we not accomplish together?" -Kane (Kane) "We are in a way conquering time, reuniting members of a long lost family" -Quincy (Opabinia Blues) "I loved reading the trip reports, I loved the sharing, I loved the educational aspect, I loved the humor. It felt like home. It still does" -Mike (Pagurus) “The best deal I ever got was getting accepted as a member on The Fossil Forum. Not only got an invaluable pool of knowledge, but gained a loving family as well.” -Doren (caldigger) "it really is nice, to visit the oasis that is TFF" -Tim (fossildude19) "Life's Good! -Adam (Tidgy's Dad) Link to comment Share on other sites More sharing options...
Fossildude19 Posted October 6, 2020 Share Posted October 6, 2020 Coprolite? @GeschWhat @Nimravis @RCFossils @Carl 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Bob Saunders Posted October 6, 2020 Share Posted October 6, 2020 It looks a lot like our Lake Michigan lightning stones. Clay hardened into side-rite. Much of the black is more likely caused by the minerals in the water from the area found. Calcite filled in the cracks. Link to comment Share on other sites More sharing options...
NWARockhound Posted October 6, 2020 Share Posted October 6, 2020 I see similar looking concretions here in Arkansas, and I've kept several because they look cool! But all the ones I've seen like that are oxidized pyrite deposits or some other iron mineral that forms square patterns, not fossils sadly. Link to comment Share on other sites More sharing options...
GeschWhat Posted October 13, 2020 Share Posted October 13, 2020 It does look like an herbivore coprolite in the second photo. I would need to see microscopic images to be sure. If you have a microscope or even a good loupe, look to see if anything looks like plant material. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
GeschWhat Posted October 13, 2020 Share Posted October 13, 2020 Here is what the plant material could look like under magnification. If you do find plant material, any chance I could photograph it and send it back to you? Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
Carl Posted October 20, 2020 Share Posted October 20, 2020 Extremely hard to form an opinion on this one. But it certainly looks interesting and deserves a closer look. Is there a museum you can take it to? Link to comment Share on other sites More sharing options...
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