Lone Hunter Posted May 5, 2021 Share Posted May 5, 2021 Not sure if it matters where it came from but just in case, was in a mix of QAL and Eagle Ford. Thought it was bone when I picked it up but it felt funny like plastic and weighed nothing. Figured it would float but didn't, thought surely it would melt with flame but didn't, and no smell. I've shown it with piece of worn bone for comparison, but I'm still perplexed. What else could it be? Last picture is the bone. Link to comment Share on other sites More sharing options...
Rockwood Posted May 5, 2021 Share Posted May 5, 2021 Bone. The type that housed marrow. 1 1 Link to comment Share on other sites More sharing options...
Lone Hunter Posted May 6, 2021 Author Share Posted May 6, 2021 So it's different than the rest of the bone, like it has a different composition? Does it preserve the same? Link to comment Share on other sites More sharing options...
Rockwood Posted May 6, 2021 Share Posted May 6, 2021 As far as I know it is the same substance. The structure is obviously spongy. The piece I got out for reference has the same plastic like appearance. It came from tooth draw quarry in the Hell Creek formation. I suspect the added surface area which gives it a spongey look draws in minerals at an elevated rate causing this to occur. 1 1 Link to comment Share on other sites More sharing options...
ThePhysicist Posted May 6, 2021 Share Posted May 6, 2021 1 hour ago, Lone Hunter said: So it's different than the rest of the bone There are in general two types of bone: compact and cancellous. The former is usually restricted to the outermost portion of bone and is very dense, the latter is porous and confined to the interior. Here is an example of trabecular bone in a dinosaur rib: I might be wrong, but your other comparison bone looks more like a vesicular stone. The holes look more like bubbles than an assembly of struts. If you wash it off a bit, you might find that the holes terminate in a concave way. I wouldn't expect this kind of bone to have such "pitting." 1 "Argumentation cannot suffice for the discovery of new work, since the subtlety of Nature is greater many times than the subtlety of argument." - Carl Sagan "I was born not knowing and have had only a little time to change that here and there." - Richard Feynman Collections: Hell Creek Microsite | Hell Creek/Lance | Dinosaurs | Sharks | Squamates | Post Oak Creek | North Sulphur River | Lee Creek | Aguja | Permian | Devonian | Triassic | Harding Sandstone Instagram: @thephysicist_tff Link to comment Share on other sites More sharing options...
Lone Hunter Posted May 6, 2021 Author Share Posted May 6, 2021 Learned something new, vesicular stone, I scrubbed it and included new pictures to maybe help determine if it is. It did stick to my tongue which is why I thought it was bone. Link to comment Share on other sites More sharing options...
Rockwood Posted May 6, 2021 Share Posted May 6, 2021 I'll stand with bone. 1 Link to comment Share on other sites More sharing options...
Lone Hunter Posted May 6, 2021 Author Share Posted May 6, 2021 Good to know you agree, I have a pile of rocks with gas bubble holes, which now I know what to call them, but I was pretty sure this wasn't one. Link to comment Share on other sites More sharing options...
Rockwood Posted May 6, 2021 Share Posted May 6, 2021 Here's a shot of my reference piece. Link to comment Share on other sites More sharing options...
Lone Hunter Posted May 6, 2021 Author Share Posted May 6, 2021 Link to comment Share on other sites More sharing options...
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