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Showing results for tags 'gypsum'.
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Hi , i am showing some strange opalised fossils I have little clues about what they are. the first one on the right it’s opal replacing what ever ? on the left I splited that rock and it look like in the center a type of Gypsum ! The next picture i think it’s a pieces of coral , so rare we can see a tiny white eggs in stony opalised coral preserved next picture, just splited opal next picture it look like a Dinosaur opalised toes bones. the last picture split opal
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The Absolute Age and Origin of the Giant Gypsum Geode of Pulpí (Almería, SE Spain).
Oxytropidoceras posted a topic in Rocks & Minerals
The below open access papers are interesting. Gázquez, F., Monteserín, A., Obert, C., Münker, C., Fernández-Cortés, Á. and Calaforra, J.M., 2022. The Absolute Age and Origin of the Giant Gypsum Geode of Pulpí (Almería, SE Spain). Geosciences, 12(4), no.144, pp. 11, open access Canals i Sabaté, À., Van-Driessche, A.E.S., Palero, F. and Garcia-Ruiz, J.M., 2019. The origin of large gypsum crystals in the Geode of Pulpí (Almería, Spain). Geology, 2019, vol. 47, num. 12, p. 1161-1165. open access Yours, Paul H.- 1 reply
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- aguilón mountain range
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Day Two ; Locality Two (or Seven if you include Day One) Prepping and Retail, Erfoud, Morocco. 20th February 2019 Erfoud town itself is famous for its beautiful fossils, its skilled fossil preppers and also for its wide variety of fakes, composites, good and bad repair jobs and utter frankenfossils. A large percentage of fossils from Morocco that are available in shops and on the internet the world over originate from here or pass through the place. Fossils are sent here for prepping from all over the south and then sent from here everywhere in the country and abroad. There are many little shops, prepping centres with huge attached shops and 'museums which are really pretty much just shops as well. Top Tip :The prices here are about ten times the price of the prices in the little shacks on the edge of town or elsewhere in Morocco, but haggling can reduce the cost significantly. Many places have 'fixed' prices, but they're actually always negotiable. This time, we went to the one my friend Anouar, who is a tour guide, takes his tourists and I was asked politely not to accuse the owners and chap who'd show us around and do the chat, of having fakes or wrong info, so i had to bite my lip. We asked if it was okay to take photos and they said yes, which I was surprised about, but I guess it was because Anouar was going to use photos for his own purposes and this would involve advertising the shop. Top Tip : You will see a lot of fixed prices in Moroccan Dirham in the pieces and shelves. Divide by ten to have a price in US dollars. Because we were with Anouar, we were told everything is 50% of the marked price, but I suspect they often do this anyway, "Special Berber prices, today only". I've heard that before. And you can still haggle to get something way under that 50% and you just know they'll still be making a good profit. I didn't buy anything. Little local stores are more my line anyway - I rarely shop in supermarkets. Here is the entrance where you can see huge plates ready for prepping and polishing, some have been cut into pieces and they glued back together it seems to me, I know this happens with the crinoid beds, so i guess it's true of the orthocerid and goniatite stuff too. Some just look cobbled together because of the circular saw marks when cutting out upper layers.With these, polishing will remove the grid lines. These sheets are from the local area and contain the goniatites and orthoconic nautiloids we were walking on earlier, but from a better quality, less eroded and distorted source. Famennian, Upper Devonian, I think. This photo shows one of the trenches they dig to reach the best quality material, similar to the ones i was walking along earlier this day : Below, somebody walking on the slabs and some maps of the the world at different times in it's past, showing continental drift. : Notice these are not the famous black orthocerid marbles that come from elsewhere. The picture of Spinosaurus is a bit misleading, as you all know, it's not found in these marbles or in the Erfoud area. In fact there is very little Kem Kem material available here these days, though there was in the past. I suspect the Kem Kem area probably has it's own facillities nowadays.
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Found this in my confusing creek which has a mix QAL, QT, Eagle Ford, and some Permian. Thought it was calcite at first but it's gypsum, sorta reminds me of desert rose but has a very unusual crystal arrangement along with the rounded branch looking things, it looks like they 'bloom' right above but not sure if that's separate or part of it. Not that familiar with gypsum so not sure if it's geological.
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- cretaceous
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Giant Sinkhole Opens Up In South Dakota, People Go Inside It To Investigate And The Pics Go Viral By Rokas Laurinavičius and Mindaugas Balčiauskas Bored Panda, June 15, 2020 https://www.boredpanda.com/sinkhole-south-dakota-black-hawk-old-gypsum-mine/ Yours, Paul H.
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- geological hazards
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Hello, I believe that this is a fossilized sea urchin, it might not look so, but I do see a resemblance. It appears to be made out of gypsum, or another soft crystal. I was wondering If iy would be wise to dip it in vinigar. Would you be able to see some more details? Or will the wjole thing just dissolve?
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- echinoderm
- gypsum
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Hi , wondered if Is it possible to identify these 3 forms of gypsum. thanks for any replies . The first very large slab has a glass like layer on top, a bit like very thin ice, the other 2 forms are both very different.
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From the album: Copenhagen, Louisiana finds
I've been told from folks here on the forum that this is gypsum. I found it in the hills of Copenhagen, Louisiana. It measures approx 6"x1/2"x3". Has some interesting sediment enclosed.© ©
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- copenhagenLouisiana
- eocene
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