wendyeeeo Posted December 18, 2018 Share Posted December 18, 2018 I found this rock when walking near the Trinity River in Dallas, TX. It could have been brought in with gravel used to make a trail, since I found it by a trail. It's probably just a concretion, but the patterns are interesting! Anyone know what it is? Thanks! Link to post Share on other sites
RJB Posted December 18, 2018 Share Posted December 18, 2018 Most certainly not an egg, and does not look like any kind of fossil, so a rock of some kind. RB Link to post Share on other sites
Tidgy's Dad Posted December 18, 2018 Share Posted December 18, 2018 Agreed. River eroded rock of some sort. Link to post Share on other sites
Fossildude19 Posted December 18, 2018 Share Posted December 18, 2018 I agree. Sorry, not an egg. No eggshell structure/texture. Rind is much too thick to be eggshell. Looks like a chert nodule/concretion. Regards, 1 Link to post Share on other sites
Archie Posted December 19, 2018 Share Posted December 19, 2018 1+ for chert nodule. Link to post Share on other sites
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