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Showing results for tags 'iron'.
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2/3 found these on shore of Lake Diefenbaker in Saskatchewan, Canada. looked to be eroded from sandy deposits with layers of harder iron-rich rusty strata. the fossils themselves are heavy, mineralized with iron and then rusted? corals? all the same type or different? i think this is in cretaceous age but not sure. see other 2 posts these specimens are larger, very heavy. like solid iron, looks like outer textured surface mineralized and inner cavity separate - looks like central tubular structure did not mineralized (still sandy) in one pic (could scrape out with toothpick)
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3/3 found these on shore of Lake Diefenbaker in Saskatchewan, Canada. looked to be eroded from sandy deposits with layers of harder iron-rich rusty strata. the fossils themselves are heavy, mineralized with iron and then rusted? corals? all the same type or different? i think this is in cretaceous age but not sure. see other 2 posts these samples are really interesting, found in situ, on exposed section of eroding sandy beach cliff - see photos, sand with layers of iron rich strata but these bubble textured rusty iron “tubes” all over, connected and running for long distances
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1/3 found these on shore of Lake Diefenbaker in Saskatchewan, Canada. looked to be eroded from sandy deposits with layers of harder iron-rich rusty strata. the fossils themselves are heavy, mineralized with iron and then rusted? corals? all the same type or different? i think this is in cretaceous age but not sure. see other 2 posts
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I found this brain shaped object on the south cost of England. It’s very heavy. It is not magnetic.
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I am glad I found this forum. I've always been interested about the origins of rocks. Always amazed how something can be turned into stone given time and pressure. Note my most recent find. This odd shaped stone was unlike any others in the stream and was found in New York State, in Hudson Valley, in the Shawangunk Kill. I took it home (really heavy) and pressure washed it. The side that was down is grey and the topside was green. I assumed the green is algae growth but also thought the pressure wash would take it off. The color seems to be embedded. Likley due to the seemingly porous nature o
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Manganese and Iron Dendrites
oilshale posted a fossil in *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)
Dendrites are moss- or tree-like pseudofossils on the margins of rock fissures and fossils, usually on the bedding surfaces of platy limestones and sandstones. Mineral-rich water with high concentrations of iron and manganese has penetrated microscopic cavities between limestone layers, and diffusion-limited growth has created these brown iron and black manganese dendrites, which are often mistaken for fossil ferns or fossil moss.. This slab with manganese and iron dendrites comes from the lithographic limestones of Solnhofen. -
I saw this potential fossil in the Jurassic age Navajo Sandstone in Zion National Park in Utah. I'm sorry that there is only one picture with no scale. I was hurrying down the precarious Angel's Landing trail with a long line of people behind me, so I only had time for a quick picture. The feature is probably about ~12 inches long, and I believe that it is situated on the plane of a cross-bed in a dune structure (example of the cross-bedded sandstone is also pictured). This feature might just be some sort of iron precipitation, but it looked so similar to an invertebrate trace fossil that I am
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PA fossil rock ID, very heavy, found near Devonian fossils
LindsayWilson posted a topic in Fossil ID
I found this in our backyard in a rock pile. I find many Devonian fossils in the shale lined creeks around Erie, PA. This rock appears to be similar but is extremely heavy and different colored. I can make out fossils but don’t recognize some of the imprints abs it appears folded and is SUPER heavy. For comparison, the rock I found with it, also pictured here is about 3-4x the size but the smaller one weighs 3x as much. No magnetism, but has a burnt spot. Was it perhaps originally a large piece of the lighter fossil plate that someone burned (possibly in a fire pit?) and that is how i -
San Antonio, Tx 78023 I have this rock from my yard that looks like it’s covered in iron and something else, but below that it looks like it’s been burned.
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Still learning my formations. Found these close to the bottom of the Dakota Sandstone formation in Kansas.
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Below are 2 items found on the same day after a few days of heavy rain/high creek water. Both of these are heavy and have a hard iron-like shell or covering. The 2nd item was split into 2 pieces when I found it. It is made of the same material as the first. We have iron in our well water at the base of the ridge so I’m very familiar with the color and the smell of iron. These items don’t usually wash up in the creek. I picked them up because their unusual shape and texture contrasted with the creek’s normal sand and gravel.
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I’m only posting these because of the similarities in the 2 pieces. Very heavy iron material found in same creek in Arkansas near the Missouri border. Soon to be added to my rock garden.
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The microbially driven formation of siderite in salt marsh sediments Chin Yik Lin, Alexandra V. Turchyn, Alexey Krylov, Gilad Antler Geobiology. 2020;18:207–224. gbi.12371.pdf
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Chemical Erosion can sometimes be quite artistic
Ludwigia posted a topic in General Fossil Discussion
Last week I visited a new site in the Wutach Valley that a friend had told me about, but after 4 hours of digging and prying and not much to show for it, I decided to call it a day there and spend the remaining few hours checking out a plowed field in the viscinity which usually gave up a few modest finds. But this time I was in luck. The farmer had laid a long furrow on the edge of the field which was exposing a fossiliferously fruitful bed with which I was quite familiar: the Bajocian Macrocephalen-Oolite with among other things lots of Macrocephalites ammonites ripe for the harvest. All I h- 10 replies
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NEED HELP!!! Is This Just an Iron Concretion or A Preserved Fossil?
Kurufossils posted a topic in Fossil ID
Hello everyone, I am in desperate need of help with a huge debate I have been having with a friend over fossils preserved in ironstone concretions. From some of what I had read to some advice from other members I it possible to find vertebrate bone among shells and other mollusks preserved in an ironstone concretion. Whether it leaves a trace of the organism, morphs the organic material into the structure of the iron concretion through the decomposition with preserving, or whatever else it may be it seems to be possible. So recently I have hunted a place known to have recorded mar -
While rockhounding in the area of the Niagara Penninsula, I found an odd-shaped piece of metal about 5 inches beneath very thick, wet mud. The place in which I found the object was in a very shallow stream, which ran over sedimentary rock of the pre-Cambrian shield. After a closer inspection at home, I believe I may have found an iron-mineralized piece of a petrified wood, intertwined with two separate vines. A friend suggested it may be a rusty drill bit although I have doubts based on the location it was found. It is 3 1/2" long and 3/4" wide. It is heavy and seems hard like a metal. It is s
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Found this on the beach the other day along Puget Sound north of Seattle, and I just polished one face a bit (first photo) with some sandpaper to see the un-weathered stone. Is this siltstone, petrified wood, something else? Has anyone seen one with iron like this? Edit: I sanded it some more and took another photo. Pretty sure this is wood, based on the grain, but I'm no expert!
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I wanted to share some of my projects with all of you. A hobby and side business of mine is creating dinosaur sculptures. I do all different kinds of things aside from dinos too, but to keep it relevant, we’ll stick to the mesozoic Featured in my profile picture is my raptor created from scrap metal used to construct railings. I named him Bambi (ironically not a Bambiraptor). Probably more like Deinonychus, he’s a pretty big chicken, but you let me know what you think. As of now he’s my favorite creation, hence why he’s featured in my profile pic. Still trying to figure out the
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I FINALLY got something recognizable that didn't flake or crumble and now I don't know what it is. It was collected near Monster Lake in Braidwood. According to my identification book it may be a Cyperite, however, the book also says that these are "uncommon in most areas."
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I am new to the fossil collecting hobby and am attempting to open my iron concretions collected in Braidwood, IL using the freeze thaw method. I am doing it in my freezer in a single layer in a plastic shoe box. When they are thawing at room temperature the outer layers are crumbling. The nodes have not split yet. Is that normal or am I doing something wrong? Thanks.
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From the album: Vaches Noires spring 2018 and a bit of 2016
Iron pyrite from "les Vaches Noires" Cliffs - collected during april 2018 -
Hi everyone! Here's my first post on the forum, and I'd like to share an image of a little iron-replaced cretaceous-aged ammonite (unidentified species) which I have photographed recently using a $10 webcam-type digital "microscope". The image is created using a total of 70 individual frames stitched together using an automatic stitching software. The size of the ammonite is about an inch across. As an added bonus, I took the photograph and used it to make some digital measurements to determine how close the shape fits to a logarithmic spiral. The image b
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Pyritic_and_baritic_burrows_and_microbia.pdf Pictorially well endowed article, but that's just my opinion, mind. Lowemark is, of course, Mr Zoophycos himself.
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@ynot et al. How would you characterize this rock? It's about 2 lbs and has dimensions of 4-1/8" x 2-1/2" x 3". Heavy, but does not attract to magnet. I am calling it an "iron-rich concretion". From glacial deposits in Michigan. Thoughts?
