$Lynn$ 3 Posted February 13, 2019 Share Posted February 13, 2019 So my grandson and I were collecting rocks from my land in N.E. Oklahoma around chelsea okla. I found these elongated rocks with what looks like a rock growth on them. they are brittle I dropped one and it broke with ease. You can see in pic the center of the broken one. If you tap them together while loading they sound metallic ish. they are seemingly heavy. smooth but in places looks like a growth. The growth is as hard as rock itself. Thanks ahead for your help. the first pic is the broken one. its mate is in the forground. Quote Link to post Share on other sites
bigrex 59 Posted February 14, 2019 Share Posted February 14, 2019 Looks potentially sedimentary, not sure of much else. Quote Link to post Share on other sites
Morlock 1,607 Posted February 14, 2019 Share Posted February 14, 2019 Limestone perhaps? Put a few drops of warm vinegar on it. If it fizzes after a few minutes, it's limestone. Quote Link to post Share on other sites
4meter 186 Posted February 14, 2019 Share Posted February 14, 2019 I agree with Morlock. Looks like a fossiliferous limestone that is weathering unevenly due to different difference in the material that makes up the rock. Quote Link to post Share on other sites
$Lynn$ 3 Posted February 14, 2019 Author Share Posted February 14, 2019 Thanks gentlemen. i will do it and report back. o did find fossils in it as well...shells and creatures. Quote Link to post Share on other sites
chrisski 809 Posted February 14, 2019 Share Posted February 14, 2019 Are they typical of the rocks found in that area? To me it kind of looks like what someone may have used as an old cobble sidewalk. If there's lots of those spread all over, I doubt it, if they were found in one group, maybe. Quote Link to post Share on other sites
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