Trilobiting Posted March 29, 2018 Share Posted March 29, 2018 Yesterday, I visited the famous Moenkopi Dinosaur Tracks site. The lady to guided me pointed out shiny rocks, which she said were jasper fossil corals. She let me collect them while I was being guided. I'm sure the pieces are jasper, but I'm not sure of they're pieces of coral. Are they? In addition, there were some other things she pointed out, such as dinosaur eggs, skulls, coprolites, and vertebrae. I already knew these were suggestively shaped pieces of sandstone. I'm sure this misinformation wasn't on purpose, though. "Fossils have richer stories to tell about the lub-dub of dinosaur life than we have been willing to listen to." - Robert T. Bakker Link to comment Share on other sites More sharing options...
jpc Posted March 29, 2018 Share Posted March 29, 2018 I had the same sort of experience at a similar site. Not sure if it was the famous Moenkopi site, but it was in NE AZ. Link to comment Share on other sites More sharing options...
Herb Posted March 29, 2018 Share Posted March 29, 2018 some pieces look like weathered coral but hard to tell w/o closeups "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Rockwood Posted March 29, 2018 Share Posted March 29, 2018 Wouldn't petrified wood be more likely ? Link to comment Share on other sites More sharing options...
Trilobiting Posted March 29, 2018 Author Share Posted March 29, 2018 Here’s a close-up of a piece "Fossils have richer stories to tell about the lub-dub of dinosaur life than we have been willing to listen to." - Robert T. Bakker Link to comment Share on other sites More sharing options...
Trilobiting Posted March 29, 2018 Author Share Posted March 29, 2018 12 minutes ago, Rockwood said: Wouldn't petrified wood be more likely ? Some pieces do look like petrified wood.. But I'm not sure. "Fossils have richer stories to tell about the lub-dub of dinosaur life than we have been willing to listen to." - Robert T. Bakker Link to comment Share on other sites More sharing options...
Trilobiting Posted March 29, 2018 Author Share Posted March 29, 2018 Another close-up. "Fossils have richer stories to tell about the lub-dub of dinosaur life than we have been willing to listen to." - Robert T. Bakker Link to comment Share on other sites More sharing options...
Rockwood Posted March 29, 2018 Share Posted March 29, 2018 They would be terrestrial, common enough to be spared, and it's something that is often only identifiable with instruments initially, but subsequently quite distinguishable by eye. Link to comment Share on other sites More sharing options...
Malone Posted March 29, 2018 Share Posted March 29, 2018 The holes seem randomly sized. I don't know if that's indicative of anything though. 1 Link to comment Share on other sites More sharing options...
Malone Posted March 29, 2018 Share Posted March 29, 2018 Here's something from the USGS that might help 1 Link to comment Share on other sites More sharing options...
abyssunder Posted March 29, 2018 Share Posted March 29, 2018 All the specimens above look polished, like they were tumbled. Silica rich material for sure, but it's hard to see anything else. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Trilobiting Posted March 29, 2018 Author Share Posted March 29, 2018 (edited) 50 minutes ago, abyssunder said: All the specimens above look polished, like they were tumbled. Silica rich material for sure, but it's hard to see anything else. Yes, the site where I found these experience wind all the time, which is probably why they have a polished appearence. Edited March 29, 2018 by Trilobiting Typo "Fossils have richer stories to tell about the lub-dub of dinosaur life than we have been willing to listen to." - Robert T. Bakker Link to comment Share on other sites More sharing options...
Malone Posted March 29, 2018 Share Posted March 29, 2018 (edited) In the second to last picture I thought the black material might be microlites(sp?) Edited March 29, 2018 by Malone Numbered wrong Link to comment Share on other sites More sharing options...
Herb Posted March 30, 2018 Share Posted March 30, 2018 the closeups do not look like coral.Looks like regular jasper "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Malone Posted March 30, 2018 Share Posted March 30, 2018 I thought jasper was not found in nature with that sheen, also the color variation doesn't seem consistent with jasper. Jasper is supposed to mean spotted stone. I was unable to find anything that shows the different stages jasper. Being as jasper is considered a stage of a combination of minerals by differing identifiable isotropic variation. It supposed to be able to brought to a highly polished state, but I was unaware that the natural conditions would have to absolutely perfect for it to be brought to that state without physical alteration by man barring perfect conditions. Anyway I would appreciate any enlightening. Link to comment Share on other sites More sharing options...
Malone Posted March 30, 2018 Share Posted March 30, 2018 In regards to my last post what is the surrounding material from where the stones were found? Link to comment Share on other sites More sharing options...
Malone Posted March 30, 2018 Share Posted March 30, 2018 Also in researching jasper I found it is also a slang term for a simple or naive guy. I would admit to being a jasper. Link to comment Share on other sites More sharing options...
D.N.FossilmanLithuania Posted March 30, 2018 Share Posted March 30, 2018 I would say there could be crocodyliform scutes- Triassic? Link to comment Share on other sites More sharing options...
Malone Posted March 30, 2018 Share Posted March 30, 2018 After further research I found there is a form of jasper called jasperilite which is not spotted but banded. And with a hardness of at the peak of the upper range of dust hardness. So please ignore my previous questions. I hope this is read prior to any wasted efforts in response. Link to comment Share on other sites More sharing options...
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