northnjhiker Posted May 15, 2019 Share Posted May 15, 2019 (edited) Hi everyone. I found this extruding from a hillside on Green Mountain near Golden, CO. It is in the Green Mtn Conglomerates formation. Lots of little petrified wood around. Color or is white with some slight red marks. There are small pores but different than what I see with a lot of pet wood. Any help would be great. https://imgur.com/tpVtjNR https://imgur.com/tfv8lO3 https://imgur.com/qFxG2c7 https://imgur.com/FKz5Mr0 https://imgur.com/wwYlheE geology info: https://imgur.com/tiAh2ok Edited May 15, 2019 by northnjhiker Change title Link to comment Share on other sites More sharing options...
Kane Posted May 15, 2019 Share Posted May 15, 2019 Could you post the images here? As the site is archived, it is important that third party links for photo IDs not be included as those have a tendency to expire, removing the context of the thread for future readers. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 15, 2019 Share Posted May 15, 2019 Posting pictures here for posterity, when the imgur links expire. To me, it looks like a mineral vein running through the rock. Quartz or calcite. 3 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
northnjhiker Posted May 15, 2019 Author Share Posted May 15, 2019 Thanks for reposting. I thought the vein might be quartz filling an old crack in the bone. Like it does with gaps in petrified wood. Link to comment Share on other sites More sharing options...
Misha Posted May 15, 2019 Share Posted May 15, 2019 54 minutes ago, northnjhiker said: Thanks for reposting. I thought the vein might be quartz filling an old crack in the bone. Like it does with gaps in petrified wood. Nothing in those pictures to suggest that the piece is bone, I also don't think quartz can be found along with bones at least in the way you are saying. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted May 15, 2019 Share Posted May 15, 2019 I don't see any evidence of bone or wood in the photos. Of course it's not the same as seeing it in person, so I can't be 100% sure, but from what I can see I'm inclined to say it is purely geological in origin. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Bronzviking Posted May 15, 2019 Share Posted May 15, 2019 I agree it's a wide mineral filled vein in a rock, not a fossil. See the spider web veins running next to it? Here's a good example of quartz veins in rocks. Link to comment Share on other sites More sharing options...
northnjhiker Posted May 15, 2019 Author Share Posted May 15, 2019 I have to say I disagree with the opinions that it is a rock. I’m a pretty seasoned geologist and this is not a rock. Can you guys give any sort of info in what rock you think it is? And reasons and visual clues? Thanks Link to comment Share on other sites More sharing options...
Rockwood Posted May 15, 2019 Share Posted May 15, 2019 I'm a landscaper, and it looks like a rock to me. I'd say it was near the oven that that gneiss was baked in. Link to comment Share on other sites More sharing options...
Rockwood Posted May 15, 2019 Share Posted May 15, 2019 Oh and it lacks the cubes, rays, and circular structures to be wood. Link to comment Share on other sites More sharing options...
northnjhiker Posted May 15, 2019 Author Share Posted May 15, 2019 Just now, Rockwood said: Oh and it lacks the cubes, rays, and circular structures to be wood. Buddy what does that even mean? I said it wasn’t wood. And gneiss has a lot of small sand grains, often mica, metamorphosed into a very hard rock. This is crumbly. It also has no mica or meta- sand grains. How did you come to your conclusions? Link to comment Share on other sites More sharing options...
Kane Posted May 15, 2019 Share Posted May 15, 2019 I wonder, given the smooth surface, striations and direction, if this might be a slickenside. I'll tag @ynot on this. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Rockwood Posted May 15, 2019 Share Posted May 15, 2019 3 minutes ago, northnjhiker said: Buddy what does that even mean? To me it means it has no diagnostic features of it being petrified wood. It simply looks like metamorphic rock to me. I didn't say it was gneiss. Link to comment Share on other sites More sharing options...
ynot Posted May 15, 2019 Share Posted May 15, 2019 Looks like a fine grained sandstone or siltstone, with a mineral vein in it. I do not see any indication of bone (or other fossil) here. 3 Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
SailingAlongToo Posted May 15, 2019 Share Posted May 15, 2019 From the photos posted, definitely looks geological to me rather than biological. 1 Don't know much about history Don't know much biology Don't know much about science books......... Sam Cooke - (What A) Wonderful World Link to comment Share on other sites More sharing options...
-AnThOnY- Posted May 15, 2019 Share Posted May 15, 2019 Just a mineral vein running through a rock. No fossil. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted May 15, 2019 Share Posted May 15, 2019 3 hours ago, northnjhiker said: I’m a pretty seasoned geologist and this is not a rock. A seasoned geologist knows that most fossils are rock. This sentence contradicts the claim it makes. It's in itself a non-sequitur. 3 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Ludwigia Posted May 16, 2019 Share Posted May 16, 2019 11 hours ago, northnjhiker said: I have to say I disagree with the opinions that it is a rock. I’m a pretty seasoned geologist and this is not a rock. Can you guys give any sort of info in what rock you think it is? And reasons and visual clues? Thanks Can you please give us more details to support your statement that this is not a rock. All we have to go on are a few photos. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Plax Posted May 16, 2019 Share Posted May 16, 2019 I've seen heavily mineralized bone with mineral veins in it. The only easy way to tell it was a bone was that it was an identifiable bone element from a known vertebrate fossil site. Busted up this would just look like a rock. This looks like probable bone to me. It doesn't look like any of the rocks described from the site and certainly not sandstone or siltstone. We all opine based on our experience. Perhaps we have someone on here with experience with Triassic or Jurassic bones? Link to comment Share on other sites More sharing options...
JohnJ Posted May 16, 2019 Share Posted May 16, 2019 @northnjhiker Better images of the cleaned, interior broken surfaces (posted here) would be useful to a better understanding. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Bronzviking Posted May 16, 2019 Share Posted May 16, 2019 11 hours ago, Plax said: I've seen heavily mineralized bone with mineral veins in it. The only easy way to tell it was a bone was that it was an identifiable bone element from a known vertebrate fossil site. Busted up this would just look like a rock. This looks like probable bone to me. It doesn't look like any of the rocks described from the site and certainly not sandstone or siltstone. We all opine based on our experience. Perhaps we have someone on here with experience with Triassic or Jurassic bones? Do you have any photos of mineralized bone with mineral veins in it to show us? Thanks. Link to comment Share on other sites More sharing options...
Bronzviking Posted May 16, 2019 Share Posted May 16, 2019 @northnjhiker can you take some zoomed in shots so we can look at it more closely? Also, do you have any petrified wood samples from the same area to make a comparison? Thanks. Link to comment Share on other sites More sharing options...
Plax Posted May 20, 2019 Share Posted May 20, 2019 On 5/16/2019 at 7:21 PM, Bronzviking said: Do you have any photos of mineralized bone with mineral veins in it to show us? Thanks. google "agatized dinosaur bone". Several picks there with mineral veins. I think that the OP has it right though that it is a mineral filled crack in a bone. the OP has already stated that he knows pet wood and it's listed from the site. the literature cited also lists dinosaur bone as being found there. 2 Link to comment Share on other sites More sharing options...
Rockwood Posted May 20, 2019 Share Posted May 20, 2019 On 5/16/2019 at 7:50 AM, Plax said: We all opine based on our experience. I for one am glad to have your experience around in times like this. Link to comment Share on other sites More sharing options...
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