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Showing results for tags 'mineral'.
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Another strange mineral to ID ,i would be very happy to put a name on it,regards
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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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Out of topic, but does anyone know what kind of mineral is this
Malach posted a topic in Rocks & Minerals
Found at Anyer beach, Indonesia
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I found this rock in the mountains of Taif in Saudi Arabia and it is plutonic origin and is pretty dense I would estimate 4-5g/cm3. The mineral is black and very shiny and under a modest microscope I can see interlocking columns of greenish black crystals. I used a strong neodymium magnet to see if it was magnetic and it was not magnetic which means it doesn’t contain the common metallic minerals. What could this mineral be?
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Hello, I found this rock in a metamorphesized area of chlorite schist with tons of giant quartz veins everywhere. I found this mineral which I have never seen before and it was also present in the quartz. it’s brown and coarse as if it were sandstone. What could it be?
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Help! What is this? Botryoidal Hematite? A-A Basalt? Or WORSE?
Jellybean07 posted a topic in Rocks & Minerals
I found this in Starkville, MS and assumed it's ah-ah basalt, but was looking up different random minerals and "uraninite" came up. This couldn't possibly be a raw form of that, could it? They all came from the same place, a chalk-based cretaceous seabed. There was also marcasite in the chalk, not pictured. Some have some iridescence on the black glistening places, reminding me of iridescent hematite. I would love to learn what you all think! Thank you for your time
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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.
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So found this today in our stream and never seen anything like it. Originally thought it was a plant or bit of wood however is definitely stone/mineral/bone after the teeth test. Our best guess is a stalactite however we have no clue. If anyone can give us a rock ID or a fossil ID would love to know more. It’s just over an inch in length no more then 35mm with a hole/tube going through it
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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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Found this unusual colored river polished rock in Texas creek. is this petrified wood or some sort of quartz etc. ? mineral experts please weigh in. this color is unique for my area.
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What this mineral could be? any suggest? Thanks!
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Found in texas near a stream in salado
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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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Found this earlier today in Hamilton, Ontario. It was next to railway tracks, so at some point it was brought there with other gravel. Would really appreciate if anybody could help figure out what it is. Thanks
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Interesting.... formation I found. Please, tell me all that you know.
Ikikit posted a topic in Rocks & Minerals
Found this out hiking and was hoping someone could give me a more knowledgeable analysis of it, based on what can be seen from the photos. Good luck to everyone out hunting fossils and whatnot and thanks in advance for any replies.
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This was among a batch of discarded rocks and minerals that a college geology department left behind (dumped in the woods but rescued by a family member of mine) when the college closed. I am starting from scratch in ID'ing all of them, origins unknown. Might this be Aragonite/Cave Calcite? I know that Aragonite isn't actually calcite, but I have seen formations similar to this referred to as Cave Calcite? It is hard - scratches glass, not scratched by a metal object, does not fizz with full strength industrial vinegar, measures about 6cm long. Thanks! Ramona
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What could it be??very strange
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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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Hello! Today I accidentally found some stones, which I assume to be Quartz, considering, in the same region I had found normal Quartz. But both minerals look rather beautiful and I wondered, what they could be? I googled it, of course and am not sure, whether they (or one) is a Jesper and the other one a Chalcedony? I hope someone of you can help me
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Is it a Chrysocolle ?from Chili? or not? an opinion?
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Is this a half Thunderegg from Oregon ?
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Obsidienne snow flakes and léopard jasper,from ?What could be the site of these minerals?
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I received this spectacular big mineral plate with the ID Barytine from the Gard, , Saint-Laurent-le-Minier,Southern France ,mine des Malines,i see barytine on one side and ? in the other side,is it the same?is it really the good ID?
