Caleehal Posted May 7, 2018 Share Posted May 7, 2018 I found this just outside denver colorado in an area full of petrified wood. Also found some coprolite there. The lighter areas on the surface are smooth as if worn and the darker areas are not quite as smooth. The chipped/broken areas show the inside to be fairly uniform in color. Any ideas what it is. Forgive my complete ignorance as I love rocks and fossils but have never really educated myself properly. Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted May 7, 2018 Share Posted May 7, 2018 Chert, I think. 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Vieira Posted May 7, 2018 Share Posted May 7, 2018 Is not a bone. Link to comment Share on other sites More sharing options...
jpc Posted May 7, 2018 Share Posted May 7, 2018 chert indeed. Not bone. Link to comment Share on other sites More sharing options...
ynot Posted May 7, 2018 Share Posted May 7, 2018 Welcome to TFF! Agree with chert. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 thx. Why the worn and smoother parts? It's been buried since who knows when. It's on a steep bank near where my brother lived and whenever it rained it unearth more "treasures" , mostly lots and lots of petrified wood, I did find one piece of perpetrified wood too. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted May 7, 2018 Share Posted May 7, 2018 Chert forms around an organic component, a dead animal or microorganisms. It therefore doesn't form even layers, but irregular nodules depending on the size and shape of the original components and the space available for growth. Siliceous nodules tend to be smooth on the exterior due to their microcrystalline nature. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Plax Posted May 7, 2018 Share Posted May 7, 2018 In common parlance this would be a "flint" nodule. It looks knap-able. Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 13 minutes ago, Plax said: It looks knap-able. Pretty sure that's what my 5 year old would like to do to it... 1 Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 49 minutes ago, Tidgy's Dad said: a dead animal or microorganisms. That's cool in itself, if only you could tell what it formed around. I just found the shape interesting. Letting the local librarian borrow some of my stuff for a "rock" presentation for littler kids and wanted to know what stuff is before I took it. Pretty sure the coprolite will be the "coolest" stuff there. 1 Link to comment Share on other sites More sharing options...
Plax Posted May 7, 2018 Share Posted May 7, 2018 1 hour ago, Caleehal said: Pretty sure that's what my 5 year old would like to do to it... An aspiring 5 year old flint knapper is something else! Have him wear protective eye glasses while he's making his Native American tools or gun flints. Can you get a sharp close up of those circles on the left side of the first pic? Link to comment Share on other sites More sharing options...
Caleehal Posted May 7, 2018 Author Share Posted May 7, 2018 2 hours ago, Plax said: circles on the left side of the first pic? That's about as good as I can get. I'd need to charge up my camera battery to do any better. The 5yo is a she, but she is definitely something else - plays in mud wearing a tutu... She already owns safety goggles and ear protection cuz she likes to work. Link to comment Share on other sites More sharing options...
Plax Posted May 8, 2018 Share Posted May 8, 2018 Those "eyes" look a bit like the amorphous structures on some sponge bodies. Couldn't say for sure though of course. Am accustomed to the rind on flint nodules being plain white or some drab color without detail. Link to comment Share on other sites More sharing options...
Caleehal Posted May 8, 2018 Author Share Posted May 8, 2018 28 minutes ago, Plax said: sponge bodies. That would certainly explain the shape. Thanks for your insights and suppositions. Link to comment Share on other sites More sharing options...
GeschWhat Posted May 9, 2018 Share Posted May 9, 2018 On 5/7/2018 at 2:29 PM, Caleehal said: That's cool in itself, if only you could tell what it formed around. I just found the shape interesting. Letting the local librarian borrow some of my stuff for a "rock" presentation for littler kids and wanted to know what stuff is before I took it. Pretty sure the coprolite will be the "coolest" stuff there. Coprolite is always a hit! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
GeschWhat Posted May 9, 2018 Share Posted May 9, 2018 On 5/7/2018 at 6:39 PM, Caleehal said: The 5yo is a she, but she is definitely something else - plays in mud wearing a tutu... She already owns safety goggles and ear protection cuz she likes to work. Sound like my daughter when she was little. Five is such a wonderful age! Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
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