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Showing results for tags 'agate'.
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Agatized sponge? Found in door county Wisconsin - Silurian
SilurianSalamander posted a topic in Fossil ID
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Howdy, I was wondering if anybody could tell me what they think about these rare coral fossils that I find on the Oregon Coast. They are agatized and take a nice polish. Thank You
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Found this fossil in an agate of unknown age from a gravel pit ...
SilurianSalamander posted a topic in Fossil ID
I think it looks shockingly similar to charnia. Maybe a cephalopod, snail, or plant? What could it be? -
Is it a "Turritella Agate" - chertified fossiliferous lacustrine limestone in the Eocene of Wyoming, USA.or a sample from Brazil or Madagascar? -
sponge or tabulate coral? Agatized Paleozoic fossil found in a gravel pit
SilurianSalamander posted a topic in Fossil ID
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- stromatoporid
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From the album: fossil wood
giant slice of fossil wood with pink and brown color. Pink, as I think, is rare..., have not seen many of them. This comes from Arizona, near petrified forest, from an old collection. Size is around 80 cm, this is nearly 34"© fossils worldwide
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Need help confirming what I found. This speciman was found in Milwaukee, WI. I found it in some loose landscape rock around the building I work in. Unfortunately I don't have a ruler on me right now but it's about 2 inches long and 3/4 inches wide. Originally I thought it was agate but someone in my rock group on Facebook says it looks to be silicified stromatoporoid. After doing a Google search I came across stromatolites also. So I'm not sure which one it could be. It's a beautiful specimen. What looks to be quartz on the bottom and what I originally thought was agate surrounding it. Any ide
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I found this really interesting rock while cleaning my pond over the weekend. The pond is lined with round river rocks (presumably mined here in Oregon) and this one caught my eye as I was cleaning. When I looked at it a little closer, it appears to be petrified wood with some type of bore holes. Some of the bore holes are filled with what looks like agate and others have what one might imagine a dried out petrified worm might look like. I looked at it under magnification and noticed what looks like a couple of very small (<1/8") fossils. The clearest one is in the center of the first photo
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I recently visited the coast of Oregon and was able to beach comb along the Oregon coast from about Florence to just a bit north of Newport- an area spanning a short stretch of about the middle coast of Oregon. My sister lives along the coast there and she also loaned me her spare vehicle, "Greg the Van", for my adventures. I was particularly interested to visit Agate Beach located a little north of the Yaquina Bay area for agate and fossil hunting and I found a few interesting things from around there. The trip was planned late and I didn't have time to do a lot of self-education about t
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Folks on mindat.com suggested asking this question here! This is less of a "what is this a fossil of" question and more of a "is this possible" question. I have a small chip of translucent chalcedony showing a mass of white inclusions, two of which look very much like a grass seed-head. The gist of the conversation so far has been 'is it possible for fossil material to be an inclusion within a silica mineral like agate or chalcedony?' As opposed to an agate-replacement or opal-replacement fossil like an agate limb cast, agatized wood or agatized/jasperized opaque mudstone with intact fos
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Hello TFF, I purchased this relatively inexpensive specimen at Mineralfest this past fall, and I was wondering if anyone could tell me more about it. The seller informed me it could possibly be from Madagascar, but was transparent in admitting that she couldn't confirm for sure. It was with other pieces of petrified wood that were brown, but I was drawn to this one due to the red hues. I think it's agatized, and it looks "glassy," although there are too many impurities to shine a cell phone light through it. One side is polished, and I put water on the rougher backside to show mor -
Found in landscaping bed in south Texas I think it could be a solitary coral.
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Found in a small Yellowcat wash, outside Moab, UT while scouring for petrified wood. Not near a uranium mine. Partially exposed and nothing else like it around the area all day. The wash was in Morrison material. About 3” x 5”. Super shiny even without washing. Thanks!
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Hi guys, avid rock hunter here, brought home this “thunder egg” from crater of diamonds in Arkansas a few years ago. I finally got a slab saw and it’s not what I expected! It’s semi transparent in spots and some druzy inclusions. Some areas seem a little oolitic? Could it be an “agatized” fossil of some sort?
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This fossil was found on a Gold Coast beach in 2019. I'm thinking Pliocene as it's like most of my beach fossil finds. It's a curiosity as it has some crystals inside the carapace. Any thoughts on this? Thankyou!
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Some petrified wood found in northwestern New Mexico, San Juan Basin, Upper Cretaceous, Kirtland Formation a couple of weeks ago. The cut slabs are from a log about 6-inches in diameter and my best guess is conifer only because most everything else in that area turns out to be conifer, specifically, Cupressinoxylon sp. Any other opinion about species would be welcome. There are several nice agate bands running through the length of the log and are clearly visible here. The first slab is dry and the second is wet.
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Any Ideas on this?
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Need help making an ID as to what I’ve found on the beach!
HaidaGwaiiBeachFinds posted a topic in Fossil ID
Hello All, I’m a newbie to this forum, subsequently solving my many fossil and rock mysteries. This one has me stumped. Surely it cannot be a fossil inside? Does that even happen? Also, it’s more defined than any other agate I’ve seen here (Haida Gwaii). Gosh, I sure hope this is an agate (please prove me wrong, if I’m wrong)! Thanks a mil. -
Happy new year. This is my first attempt at a post, so try and go easy. I respect the depth and breadth of knowledge in this forum. Thanks for yours in advance. Unfortunately I do not have a proper provenance for this specimen. This peice was purchased at auction with a rock lot, silified chalcedony (agate), and I was surprised at the symmetry and shape. My amateur mind brought me to fossil bivalve. Another specimen from the same lot shows this exact shape and general size, so here I am. What are your thoughts? Thanks again. 125mm x 115mm x 60mm 1216g
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I found this agate on a beach in Northern California. It appears to have a flying insect trapped inside of it. Is this even possible? Or is it an illusion? Who would I contact to find out for sure?
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The fossil I am posting today does not contain calcium. I does contain agate and my question is could it be a fossil stromatoporoid or stromatolite or something else?
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I wish I could recall for sure where I found this. Most of my collection is from tide pools and coves on the West coast of the US but it could possibly be from Zion National Park in Utah, Kern River in CA, or a number of other places but those listed are most likely. It’s porous, lighter and slightly warmer than stone. The dark red areas are striated and softer than the rest. It does resemble some photos I’ve seen of agatized red horn coral, but I’m not sure. Any ideas or suggestions are welcome.
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I found this on a rocky beach in West Seattle. Looks to be pretty transparent with a bit of banding. I assume it's just geological, but based on the size and shape I guess it could maybe be a bivalve fossil? SG is 2.61
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I am not sure if this is petrified wood or an agate. Origin: Arizona. Please help.
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I have a 1/4" slab of ? I have no clue what it is. It looks like jasper or agate? It is solid considering how thin it is.
