Fondafossils Posted May 18, 2015 Posted May 18, 2015 (edited) I found this item in Marble Falls, Texas. Does anyone know what it is? Thank you. Edited May 18, 2015 by Fondafossils Melanie
grandpa Posted May 18, 2015 Posted May 18, 2015 Fonda, It looks like a rock layered with two different materials of different errosion rates. Without seeing an exposed surface (e.g. a chipped surface), I'd guess that the more resistive layer is a chert and the more errosive layer is a calcium carbonate (limestone or dolomite) layer. BTW, have you had a chance to try to ID the brach's from your two previous posts? Let us know what you think they are and we will give you our best feedback. Regards, Gramps 1
Fondafossils Posted May 18, 2015 Author Posted May 18, 2015 Hi Gramps, Thank you for your input. At first glance, of course, I thought of a tooth. But it did not look right, per the photos in my literature. What you say makes sense; it's just a neat looking rock. Since I collect those, too, that is fine with me. I agree with the input given on the other posts. I have collected rocks and fossils for years, but I am trying to be more thorough in checking whatever I find. I really appreciate the help from the good people on this forum. Thank you very much! Melanie
grandpa Posted May 19, 2015 Posted May 19, 2015 Melanie, I like neat-looking rocks myself. In fact I have a garage full of them, and a few "real" specimens as well. I have a lot of currating to do on my own collection also. I must say that I get a real thrill when I can actually match a new find with an actual ID. Sometimes the hunt for the ID is almost as fun as the hunt for the rock/mineral/fossil - - NOT!! But it's still fun to know that I was able to ID it and give it its proper place in my collection. But sitting in front of a computer or in an armchair surrounded by ID books will never replace being out in nature "on the hunt" and discovering all kinds of neat stuff, even stuff that isn't rocks. Don't you agree? Gramps
howard_l Posted May 19, 2015 Posted May 19, 2015 It looks a little like a stromatoporoid, I don't know what age this is but they were most common in the lower Paleozoic but existed through the Mesozoic. Howard_L http://triloman.wix.com/kentucky-fossils
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