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Showing results for tags 'mineral'.
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Hi, always from the Omhden (DE) quarry. I'm wondering what this dark mineral actually could be... I'll report 2 different speciments, both about 10-15cm in length. They have little white "spiderweb" across the dark lucid surface. it is like 1mm thick this could be really useful for beginners like me thanks a lot Paolo
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I found more of this rock, found at Anyer beach, Indonesia
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Denver Mineral, Fossil, Gem & Mineral Show 2022
Top Trilo posted a topic in General Fossil Discussion
Today I took a trip to the annual Denver fossil show, I really enjoyed it and it wasn’t 90+ F (32+ C) this time. There were fossils and minerals from all over the world, all though mostly minerals. I tried taking pictures of mostly different fossils, and they are not representative of what was at the show. If you do decide to go (it’s open for another week) look out for fakes and resorted and composited material there were many of those. It was fun to wander around looking at everything even if most of it is far outside my budget.- 37 replies
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My fossils collection with 3D printed drawer compartments
adriano posted a topic in Member Collections
I finally completed the reorder of my collection of fossils and minerals. It is a wooden hexagonal display cabinet of several wood/glass shelf; in the pictures attached I only show some of them. I 3D printed more than 20 custom drawer compartments for the smallest specimens. I decided to go for a modular design, so I can adapt every compartment to the specimen. As printing material, I used a "wood PLA" filament 3D printed with 1 mm nozzle on the Alfawise U20 3D printer. LINK I finally added a strip LED inside the cabinet door and powered it via a USB power-b- 10 replies
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Not sure if this rock is a fossil or unique mineral deposit that created uniform circles within the rock. My amateur guess would be maybe coral fossil?
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This is a tusk I prepped a few years ago, sourced from central Alaska. It was in great shape for being a partial, no breaks to repair or even major cracks to fill, all natural besides a little stabilization and polishing to bring out the colors. Really strong vivianite on this one and inside the internal cavity appears to be crystals. It was tricky to get a good photo of them, but see below. I took a few of the inside shots with a UV flashlight as well as just a flash. Vivianite crystals?
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This one has been sitting in my "interesting but I have no clue" pile for a while. When I found it, I was splitting limestone laying in the stream. I've found that when you split limestone, immediately after splitting you'll get a couple moments of a sharp looking specimen before things start to oxidize. The limestone is a very dark gray, or almost black color. You either see black limestone or white calcite pieces while splitting. I split this particular piece open and right in the middle was a 3-4 cm long, 8 mm wide gold looking rectangle in the middle of the flat broken limeston
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This just fell into my lap, but I'm having a hard time telling exactly what it is. Seems to have been burrowed in by clams? Worms? Somethingorother. Not my area of expertise, so I rely on y'all. Found in northwestern Natchitoches Parish, Louisiana. Sorry for the lack of scale, but I assure you, those are standard-sized human hands. First four photos are outside, last one is a straight-through cut. Any ideas? Appreciate the help as always!
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starting to look for Micro fossils in the Pittsburg Bluff Formation - what is this?
OregonFossil posted a topic in Micro-paleontology
I've looked at a lot of sediment now and I just found this. It is a perfect sphere and semi-clear. Hard but perfectly round. Don't think it's a microfossil, but anyone have a guess as to what it is? It was inside a 3 x 6" piece of the formation. Image about 4-500X. Object cannot be seen with naked eye. -
Even though I fancy myself as a self-collector of fossils, I have always been interested and attended shows as they are excellent learning/networking venues. For the past few years, I have been attending the Quartzsite shows. The first times I attended, I was pretty lost since they are actually a series of shows, some overlapping, some not, at different venues. Very confusing. That's part of the charm though since there is much to like about these shows: they occur at a time of the year (winter) when nothing else is happening in much of the country, you can find excellent bargains, they are pr
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i received few minerals(sometimes sliced and polished) from a old collection mixed with fossils,mostly without name and location some are very easy to ID (I think),but i know nothing about minerals,if somebody could help?It would be very happy,this one seems to be for me kind of coprolithe,perhaps??? regards
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Denver Mineral, Fossil Gem & Jewelry Show 2021
Top Trilo posted a topic in General Fossil Discussion
Yesterday (9-11-2021) I went to the Denver fossil show. It was my first time going and I really enjoyed it. Most of the show was minerals and gems and jewelry however there were quite a few fossils. Unfortunately, most were Moroccan. There were some Pleistocene fossils, Meg teeth, USA Dino material and a few other things. Well might as well start with the photos. Let’s start with the few mineral pictures i took. Next up the Moroccan material which dominated the fossils present. -
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 i -
What do you think. Found in James river. Central Virginia
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Hi guys, I recently started learning to fossil hunt for my son as he loves dinosaurs and on our first trip we found this in a limestone. I am completely new and really sorry if this borders on an insult to some of your experience but I have no idea whether to crack the rock open and have a look or whether I’d end up breaking a fossil of some kind if I did or whether it is just a mineral running through of some sort! There was a much larger rock with the same streaks but in a diamond shape on the beach so if it is a fossil I’ll be running back there ASAP Tha
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These were all found in the same river, over time. It is a river in SE Texas known for fossil finds from large mammals in the Pleistocene. I think due to their river tumbling they are not identifiable, but I just wanted to see if it is possible they could be some type on mineral rather than bones? Pics are front back. We find a lot of petrified wood in the area too, but it normally looks distinct from this. The two on the left almost look like they are variations of the same thing, and the one second from left has some kind of almost enamelish looking stuff in threads on the surface. Non
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Are these fossil shells with odd mineralization or a mineral of some sort?
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I was wondering if someone knows if this is a fossil. Since it might just be a mineral? Anyway it weights 1 kg so its heavy, and also found in the Philippines. Any guess or answer is appreciated
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Looking to try a new twist to the blind trade. I propose a blind trade for one item only. It can be a fossil or a mineral. Is anybody out there interested? I only ask no junk/ scraps. One decent item for another.
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San Antonio, Tx This one had an odd coloring and texture. Looks like shell and sediment.
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I made this a few years ago and I'm not sure if I shared it with the group or not. Its something I came up with and thought it would be cool to frame and hang near my desk. Its not fancy and the verbiage might not be precise but I think you get the Idea Besides fossils, I collect specimen grade seashells, minerals, skulls, and artifacts (I include artifacts into Natural History). I made/printed one off for each collection. Happy Collecting!
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I have been finding a lot of these recently. They are waxy to the touch and come in a variety of pale white to orange tinted. Are these pieces of amber or are they some other kind of mineral? Thanks!
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What percent of original material is actually preserved in fossils?
Somethingwicked posted a topic in General Fossil Discussion
So, I know fossils are largely replaced by minerals which turn them to stone in the shape of the original (bone, tooth, whatever). But do some minerals survive? For instance, does the original calcium in the tooth or bone remain? What percent of a fossil would you guess is original mineral vs replaced mineral?
