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Found in Michigan, recently, I came across coal and shale full of flecks along a river full of carboniferous fossils and stones. Much of the coal will still have bits of visible calamites within them, if it helps. I don't have much experience with pyrite, but have with chalcopyrite. The coal I believe is effected by chalcopyrite by the outside looks but the inclusions are more pale, silvery-gold in some areas rather than a deep gold, brown, or iridescence. Is this likely just chalcopyrite, or can the two grow together like this? Are there other ways I can tell whether it is pyrite vs a yellow/gold chalcopyrite, in general? (Apologies for the pic quality, the water was reflecting the shines off the inclusions and was hard for the camera to focus on the whole thing.)
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From the album: Plants
cladophlebis tenuipinnula Holmes 2002 Nymboida Coal Measures. Farquahars (Coal)Seam. Nymboida New South Wales Australia -
Fushun Amber (Guchenzgi Fm., 56-50 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
A small, partially broken nodule of amber from the West Open Pit Mine in Fushun, China, weighing .8g and measuring (mm) 15x11x10. The mine was closed in 2019, but small pieces of amber are still recovered from coal found in the gangue piles; it is separated from the matrix by mechanical action and immersion in large vats of saltwater solution, and recovered with netting as it collects at the surface. This material is hard, takes a high polish, and is often shaped and drilled to make beads. Its chemical and spectrographic signatures indicate this amber is derived from a cupressaceous source.© Kaegen Lau
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Fushun Amber (Guchenzgi Fm., 56-50 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
A small run of amber from the West Open Pit Mine in Fushun, China, weighing .7g and measuring (mm) 11x15x9; the oblique view better displays the slightly oxidized surface of the largest flow in the piece. The mine was closed in 2019, but small pieces of amber are still recovered from coal found in the gangue piles; it is separated from the matrix by mechanical action and immersion in large vats of saltwater solution, and recovered with netting as it collects at the surface. This material is hard, takes a high polish, and is often shaped and drilled to make beads. Its chemical and spectrographic signatures indicate this amber is derived from a cupressaceous source.© Kaegen Lau
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Fushun Amber (Guchenzgi Fm., 56-50 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
A small run of amber from the West Open Pit Mine in Fushun, China, weighing .7g and measuring (mm) 11x15x9; note the several flow lines of successive runs. The mine was closed in 2019, but small pieces of amber are still recovered from coal found in the gangue piles; it is separated from the matrix by mechanical action and immersion in large vats of saltwater solution, and recovered with netting as it collects at the surface. This material is hard, takes a high polish, and is often shaped and drilled to make beads. Its chemical and spectrographic signatures indicate this amber is derived from a cupressaceous source.© Kaegen Lau
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Fushun Amber (Guchenzgi Fm., 56-50 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
A small run of amber from the West Open Pit Mine in Fushun, China, weighing .7g and measuring (mm) 11x15x9. The mine was closed in 2019, but small pieces of amber are still recovered from coal found in the gangue piles; it is separated from the matrix by mechanical action and immersion in large vats of saltwater solution, and recovered with netting as it collects at the surface. This material is hard, takes a high polish, and is often shaped and drilled to make beads. Its chemical and spectrographic signatures indicate this amber is derived from a cupressaceous source.© Kaegen Lau
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Fushun Amber (Guchenzgi Fm., 56-50 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
Roughly 200g of small (≈1g) nodules and runs of amber from the West Open Pit Mine in Fushun, China; the mine was closed in 2019, but small pieces of amber are still recovered from coal found in the gangue piles; it is separated from the matrix by mechanical action and immersion in large vats of saltwater solution, and recovered with netting as it collects at the surface. This material is hard, takes a high polish, and is often shaped and drilled to make beads. Its chemical and spectrographic signatures indicate this amber is derived from a cupressaceous source.© Kaegen Lau
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Sumatra Blue Amber (Sinamar Fm., ~30 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
4.3g dark, transparent blue amber from West Sumatra. After grinding and polishing, I was surprised to discover that it contains 2 ants and 2 winged ants (possibly wasps); these were a little tricky to photograph, due to the amber's strong fluorescence under 140 lumen LED light, so these inclusions had to be backlit. I used a Canon EOS 500D, Canon 60mm f/2.8 Macro Lens, and combined 2x and 4x Hoya circular magnifier lenses (8x).© Kaegen Lau
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Canadian Amber (Allenby Fm., 52.5-48 Ma)
Barrelcactusaddict posted a gallery image in Member Collections
From the album: Fossil Amber and Copal: Worldwide Localities
Closeup of material from previous entry.© Kaegen Lau
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Are these "black rocks" fossils, pumice, slag? I'm so confused
natwell19 posted a topic in Fossil ID
hello all, I found a lot of this specific type of rock and I thought they could be fossils. Now I'm not so sure. They have what appears to have a spongy inside and flat outside, on the sides that are still there. I tried to take pictures to show them well. A few of the pieces have two "lobes" at one end and the lobes appear to be splitting. They are all the same color, though some are dry and some are damp still. I was trying to figure this out on my own, and I thought it could possibly be coal (if not a fossil), but i really don't know how to test it. My husband did try to light it on fire... it did not catch fire. If you need more pictures, let me know. I got these in a river in Williamson County Tennessee. I believe the only dinosaur we have that's been found is hadrosaur specifically edmontosaurs. There have been multiple types of megafauna mammals like sloths, rhinos, and mammoths. If these are nothing, I will be sad, but at least I'll know not to pick these up anymore! LOL. Thanks! IMG_4308.heic
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I found this in St. Clair county, Alabama. The area is near strip mines, so this may have come from tailings. I think it was uncovered when I dug a pool several years ago, but just recently found it. Thanks for any help!
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Pennsylvanian (Llewellyn Formation, 308-300 MYA) plant fossils from coal mine tailings near Mt. Carmel, PA.
fossilcrazee posted a topic in Fossil Hunting Trips
This was, essentially, a quick scouting trip based on threads on the Forum. Don't know much about these fossils but wanted to confirm the location and density of Pennsylvanian (Llewellyn Formation, 308-300 MYA) plant fossils from coal mine tailings near Mt. Carmel, PA. (NOT St. Claire, which is closed to collectors). There were abundant specimens, many bearing evidence of pyrite replacement: orange stems and plant hash. There was also some evidence of pyrite replacement by pyrophyllite to yield silver-colored films. Against the black matrix, the silver-film plant fossils are beautiful and, in my view, warrant prolonged and determined searching on a return visit. Once upon a time I had a lovely plate from the St. Clair site .... but it is no longer in my possession. Perhaps, with enough effort, and a bit of luck I can find a suitable specimen to replace it - may not be the pretty ferns but a good specimen to illustrate the fossilization process would be most welcome. . Special thanks to @idiot for location advice.
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I am quite sure this is a tree/gymnosperm Is it a lepidodendron. It was found in the screameston coal member carboniferous, Northumberland England.
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I visited a coal mine last weekend with a group, and we had a good time finding Carboniferous era fossils. There were large volumes of plant fossils. I did find a few marine fossils (brachiopods) also. I found the "thing" below as well, which mystified me. I found it splitting a rock, and there was a counterpart as well. I did not retain the counterpart, perhaps I should have (it was broken). Formation: Pottsville Group Age: Pennsylvanian Period, Westphalian-A (312 million years old) .Jefferson County, AL Anyone know what this might be?
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I was fortunate to be able to take two trips recently to the Marmaton group in Northern Missouri and wanted to share my trip report with the forum. It's hard to find information on the Marmaton in Missouri, and I struggled with the geology and understanding what members within the Marmaton I was seeing, but I had a great time non the less. I grew up in this region and have some ‘insiders’ information on a few spots I wanted to check out just from spending time running around the countryside as a kid. The first was in a local creek in the township I grew up in that contains concretions we called ‘dragon eggs.’ I was curious if they would contain fossils so on my first trip in early September I committed to breaking one open. First, here are a few pictures of the site: I was able to break this one open, and it did contain fossils! The blue line on the lower left marks a very thin layer of limestone that the concretions seem to form right above. Here are a few more pictures of the concretions for reference. A particularly large one: And one that is just cracked: Unfortunately for me only the very first one I broke had any fossils. I spent several hours hoping another would reveal some but luck was against me at that point I guess and I failed to find a single one. Frustrated I spent the remainder of the evening searching through the fallen limestone exposures. The next post will contain some of the specimens from the single fossiliferous concretion and the limestone.
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Need some ID help please. Found on the beach in South Carolina. Roughly 2” by 1.5”. Thanks.
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Good morning. I found this very heavy black brick that appears to have been broken off. It has a sheen to the outside of it. I can tell that it’s been poured as I can see the flow lines and the main lines in it aren’t natural but I’m not sure if it’s slag or coal tar. It came from a field where a house used to sit. I have found other chunks of it around but none have these straight grooves on top like this piece does. Thank you in advance.
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Hello everyone, I am a Belgian student in biology, and I love paleontology. Last week, I was walking on a slag heap near my home in the town of Marcinelle, at the coal mine called "Bois du Cazier". My attention was mainly focused on fossils of carboniferous plants (sigilaria, cordaites, calamites, etc ...). But at one point, I picked up this pretty little pebble which seemed to me to be a fossilized archosaurian egg. The slag heaps do not really respect the order of the geological layers, so it is very difficult for me to pin a year on it. I wanted to ask you if it was possible to : - confirm / deny that it is a fossilized egg - date it approximately, in view of the material that composes it (in my opinion, it should belong to the Mesozoic area, because of the colour and the fact that it was necessary to logically pass through this layer when digging, before arriving at the carboniferous veins) - identify the order, maybe the family to which he may have belonged. Please excuse-me for my bad English, Thank you in advance for your answers !
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Permian coal-burning by Siberian Traps in Siberia led to climate change
Oxytropidoceras posted a topic in Fossil News
Coal-burning in Siberia led to climate change 250 million years ago, Arizona State University https://asunow.asu.edu/20200615-coal-burning-siberia-led-climate-change-250-million-years-ago Elkins-Tanton, L.T., Grasby, S.E., Black, B.A., Veselovskiy, R.V., Ardakani, O.H. and Goodarzi, F., 2020. Field evidence for coal combustion links the 252 Ma Siberian Traps with global carbon disruption. Geology, 48. (open access) https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G47365.1/587319/Field-evidence-for-coal-combustion-links-the-252 Yours, Paul H.-
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Hi I found this in one of my fields located in Kansas. It is shiny like obsidian but I flaked off a layer and it was more like charcoal. It's basically a rock or mineral from what I can tell from its hardness. Any ideas?
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As some of you will know i have been showing some of my uncommon find from my years of collecting from opencasts in Derbyshire,UK. This find is from the coal measures and is in coal shale that produced fish teeth , fish scales and bivalves it is 18mm long 5mm wide. I have posted it before along time ago can you give me your opinions of what you think it is Thank-you. 18mm x 5mm Cheers John
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Can someone tell me what that rock that contains these plants is. Ash maybe? its a shale type material almost flint it feels like it was found in south central WV in Lincoln county it comes from the pennsylvanian era i believe.
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I am lucky enough to have permission to collect fossils at an old coal mining tip in West Yorkshire, UK. The site is now a woods, but pieces of shale can be found, containing upper Carboniferous fish fossils including sharks and Rhizodonts. At this time of year, collecting is difficult due to the leafs which cover the shale. The vast majority of the shale comes from a mussel band, which as the name suggests, contains abundant bivalves, but generally the fish remains are very small. The exceptions to this are blocks of the mussel band which contain orange coloured bivalves. These blocks seem to contain larger fish remains. However, there is generally no one rock type which is better than the others at this site. To ensure I don't cause any disturbance to wildlife, I don't do any hammering at the site. Instead, I collect promising shale samples and split them at home in search of fossils. When choosing which shale samples to collect, I look for shale samples with a relatively high grain size. I have not split the shale samples yet, but the following posts will contain photos of the site, and two fossils I found at the site today. If I find any good fossils in the samples, I will post pictures on here.
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Hello from Glenville, PA. Where there are ZERO fossils to be found anywhere nearby....
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Hi all. While working in northern alberta Canada, I found a couple of these odd "rocks" amongst a bunch of normal football sized stones. I have zero experience with anything in this field. But they stood out to me, so I took one home. I'm not hopping it's anything. But I'm very curious about it. As its structure looks organic to my untrained eyes. So I just wanted to throw some pictures out there. And see if it's just some coal and odd sedimentation. After cleaning it with hot water, I grabbed a small hammer and chisel and started poking around the "back" side. I figured the front just looks cool. And the back portion seems to not have the same detail/structure. It seems to have a relatively soft outer shell, and deposits of something that seems like coal. And underneath a dense more rock like structure that seems to mirror the outer layer. Dense enough to spark a chisel. Also there was a couple pockets of "crystalized", variation of the material I assumed was coal. I realize to this community, my probing methods are crude. But it was just a rock that looked like bone to me initially. And I'm in no way a professional. But who doesn't want to find something special!
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