Ifoundthiswhatisit Posted September 8, 2017 Share Posted September 8, 2017 Howdy. Found this in Central NJ. Is this a real fossil? Anyone know the type? Thanks Link to comment Share on other sites More sharing options...
Darko Posted September 8, 2017 Share Posted September 8, 2017 Yeah,it looks like it is...That's my opinion Link to comment Share on other sites More sharing options...
bjkibz Posted September 8, 2017 Share Posted September 8, 2017 Did you find this in place / in a brook or was this something you bought? Matrix looks wrong to me, but I could be mistaken. Mold does look like a trilobite, but that isn't my primary area. "Did you ever hear the tragedy of Darth Plagueis the Wise? I thought not. It's not a story the Jedi would tell you." Link to comment Share on other sites More sharing options...
Douvilleiceras Posted September 8, 2017 Share Posted September 8, 2017 I would like to respectfully disagree - I do not believe this is a trilobite as it has far too many segments. Although some trilobites of the Superfamily Emuelloidea (Order Redlichiida, Suborder Redlichiina) have a opistothorax that can have up to 100+ segments, the size of this piece would suggest that it does not represent a partial example of this type, and therefore is not of the class Trilobita. Regards, Jason "Trilobites survived for a total of three hundred million years, almost the whole duration of the Palaeozoic era: who are we johnny-come-latelies to label them as either ‘primitive’ or ‘unsuccessful’? Men have so far survived half a per cent as long." - Richard Fortey, Trilobite: Eyewitness to Evolution. Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 8, 2017 Share Posted September 8, 2017 This looks like imprinted slag, to me. 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...
Sagebrush Steve Posted September 8, 2017 Share Posted September 8, 2017 34 minutes ago, Fossildude19 said: This looks like imprinted slag, to me. I agree. There is even a round hole that looks like the remnant of a bubble in the upper right area. While it is reminiscent of a trilobite it doesn't show the three lobes from which trilobites get their name. You might check to see if it is attracted to a magnet, which would be consistent with slag. Nice quarter, by the way, or is that a half dollar? It has certainly been around the block a few times! Link to comment Share on other sites More sharing options...
doushantuo Posted September 8, 2017 Share Posted September 8, 2017 If anything,it kinda resembles a trace fossil like Rusophycus. I have no experience with slag and its various incarnations/morphologies,so/but I'm inclined to believe the both of you. Link to comment Share on other sites More sharing options...
Innocentx Posted September 8, 2017 Share Posted September 8, 2017 It looks metallic. I did image search for "imprinted slag" and the first example is similar to yours though not shiny. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Innocentx Posted September 8, 2017 Share Posted September 8, 2017 @doushantuo. I see that, too. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
westcoast Posted September 8, 2017 Share Posted September 8, 2017 + 1 vote for man made. Doesn't look like trilobite or rusophycus. Link to comment Share on other sites More sharing options...
Ifoundthiswhatisit Posted September 8, 2017 Author Share Posted September 8, 2017 3 hours ago, Sagebrush Steve said: I agree. There is even a round hole that looks like the remnant of a bubble in the upper right area. While it is reminiscent of a trilobite it doesn't show the three lobes from which trilobites get their name. You might check to see if it is attracted to a magnet, which would be consistent with slag. Nice quarter, by the way, or is that a half dollar? It has certainly been around the block a few times! Thanks. No, it's not magnetic. I'm sure it's rock, not slag. It's possible someone made it if it's fake, but I don't know why they'd have buried it. The coin is a silver half dollar from 1934, but I think someone used it as a rubbing coin or it had a lot of time in circulation. It's insanely smooth. It's a good flipping coin. Link to comment Share on other sites More sharing options...
ynot Posted September 8, 2017 Share Posted September 8, 2017 6 hours ago, Ifoundthiswhatisit said: The coin is a silver half dollar from 1934, but I think someone used it as a rubbing coin or it had a lot of time in circulation. It's insanely smooth. It's a good flipping coin. But it makes a lousy scale as to few know what size it is. Slag is a byproduct of refining metals, and is seldom magnetic. I agree that Your piece looks like slag. 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...
Macrophyseter Posted September 8, 2017 Share Posted September 8, 2017 Pretty positive on the slag part too. Also, like ynot said, try to use a modern coin or ruler rather than a relic, as not many people know how big they are. If you're a fossil nut from Palos Verdes, San Pedro, Redondo Beach, or Torrance, feel free to shoot me a PM! Link to comment Share on other sites More sharing options...
Ifoundthiswhatisit Posted September 8, 2017 Author Share Posted September 8, 2017 OK, sorry guys I figured it was well known coin. My bad! Sucks that it's probably a fake, I found it when I was a lil kid and always thought it was cool. It was found near a school, maybe it was a weird project one of the kids made. Link to comment Share on other sites More sharing options...
Innocentx Posted September 9, 2017 Share Posted September 9, 2017 To say it's "fake" implies something purposeful. If it's an artifact of smelting process, then most likely an impression of burnt wood or charcoal. I took this photo of a burnt stump and in the center it resembles what you have. You said it was buried so did you dig it up or use a metal detector? I would definitely pocket that if I found it. Here is a discussion of this type of thing. A number of interesting theories are put forward. https://www.researchgate.net/post/Can_anyone_identify_the_imprint_on_this_iron_slag2 @Sagebrush Steve, Is all slag necessarily magnetic? @Ifoundthiswhatisit says his piece isn't magnetic. "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
ynot Posted September 9, 2017 Share Posted September 9, 2017 23 minutes ago, Innocentx said: Is all slag necessarily magnetic? Only iron slag can be magnetic, but it is not always. Slag from refining other metals is not magnetic. 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...
Sagebrush Steve Posted September 10, 2017 Share Posted September 10, 2017 3 hours ago, ynot said: Only iron slag can be magnetic, but it is not always. Slag from refining other metals is not magnetic. Yes, sorry I misspoke earlier. Slag is all the impurities that get removed from the metal when it is refined. They typically consist of metal oxides, silicon dioxide, and any fluxes added to help with refining. Usually not magnetic, and they often look glassy. Small amounts of residual metal may also be found, but if very much they haven't done a good job of refining. Link to comment Share on other sites More sharing options...
ynot Posted September 10, 2017 Share Posted September 10, 2017 24 minutes ago, Sagebrush Steve said: Yes, sorry I misspoke earlier. Slag is all the impurities that get removed from the metal when it is refined. They typically consist of metal oxides, silicon dioxide, and any fluxes added to help with refining. Usually not magnetic, and they often look glassy. Small amounts of residual metal may also be found, but if very much they haven't done a good job of refining. Don't forget that silica is classified as a metal also. (Silicon is a man made rubber / plastic product.) 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...
Sagebrush Steve Posted September 10, 2017 Share Posted September 10, 2017 4 hours ago, ynot said: Don't forget that silica is classified as a metal also. (Silicon is a man made rubber / plastic product.) Almost... Silicon is a chemical element with atomic number 14. It is commonly used to make semiconductors and integrated circuits. Silicone (note the extra "e") is the rubber compound. Silica is another name for silicon dioxide. I took college chemistry in an earlier century but I seem to remember the element silicon was classified as a metalloid, which is not quite the same as a metal. But maybe things have changed since then. Link to comment Share on other sites More sharing options...
ynot Posted September 10, 2017 Share Posted September 10, 2017 3 minutes ago, Sagebrush Steve said: Almost... Silicon is a chemical element with atomic number 14. It is commonly used to make semiconductors and integrated circuits. Silicone (note the extra "e") is the rubber compound. Silica is another name for silicon dioxide. I took college chemistry in an earlier century but I seem to remember the element silicon was classified as a metalloid, which is not quite the same as a metal. But maybe things have changed since then. Whoops My bad. 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...
Sagebrush Steve Posted September 10, 2017 Share Posted September 10, 2017 10 hours ago, ynot said: Whoops My bad. No problem. You caught me in a mistake earlier in the thread so now we are even. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.