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Hi all! Could you please share your experience with using hydrogen peroxide for disintegrating regular clay? Looking to find small, but not tiny fossils - teeth, gastropods and such - not smaller than a couple mm, most likely 3-10mm. What % would I need? Here we can buy any from 3 to 37%. Which will be enough? Which will be safe to use at home? Should I just plunge clay into peroxide and if so, for how long? How small should the chunks be? Anything I should be aware of? Thanks in advance!
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Has anyone used sodium hexametaphosphate to disolve clay deposits?
Manticocerasman posted a topic in Fossil Preparation
I recently aquired a whole bunch of clay containing small fossils, but the clay is extreemly hard and I have trouble to extract the fossil by sieving this with water. For now I am drying the clay and putting it in sieves and rincing it with watter, but it is extremely labour intensive and uses lots of water and the result is not realy good. Someone that collects minerals recomended me Sodium hexametaphosphate to help disolving the clay, but I have no experience whatsoever with this product, so like the titel of the post sugests ; Has anyone used sodium hexametaphosphate to di -
Hi found these while digging foundations. Good quality solid clay base down to at least 2 meters deep. We came across a hard object within the soft clay. This is what we pulled out. My hand for scale, the big one looks like a bone to me? Though I have no idea tbh.
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I have collected wet clay or shale with many types of fossils embedded in it. I have found leaves, a fish, a pine cone, wooden bits, ect. Much of the fossils are there and havent turned to rock, so may not be considered an actual fossil. I am hoping some may have ideas on how to preserve these. I got them from Clarkia, ID. There is a youtube video called "Plants are Cool, too! Episode 2: Fossilized Forests!" that talks about the area. I am missing out on fossils opening it a wet clay because I can't split many thin layers, but splitting it in when dry it seems to crumble. Trying to figure
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Found on the beach in village of Niendorf on Lübeck Bay, SW Baltic Sea. The specimen is heavy. Is it an egg fossil, and if so, of what creature in what period? How did the quartz pieces come to be embedded? Thanks to anyone who can help!
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Found on surface in area with numerous crinoid stem sections. Stone appears to also have stem cross-section impressions. Friend notes this specimen does not have the five-lobed feature of crinoids. Western St. Louis County, Missouri. Near Rockwoods Reservation. Rocky clay soil is tens of meters deep with egg- to fist-size rounded stones throughout. Is this a cross-section or a negative impression? Vascular bundles? If not crinoid, what?
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Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])
Barrelcactusaddict posted a gallery image in Members Gallery
![Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])](http://www.thefossilforum.com/uploads/monthly_2022_03/small.SAM_3438.JPG.df19976d699d495af5dcbcdf2d0495ee.JPG)
From the album: Fossil Amber and Copal: Worldwide Localities
“Oise Amber” Creil, Oise Department, France Argiles à lignites du Soissonnais Lowermost Eocene (~56-53 Ma) Specimen C (Left): 0.4g / 15x12x5mm Specimen D (Right): 0.3g / 10x10x8mm Lighting: Longwave UV (365nm) Entry nine of ten, detailing various rare ambers from European, Asian, and North American localities. French amber localities are extremely numerous and are found in 35 departments. There are at least 55 Cretaceous amber localities, contained mainly within the southern half of Franc© Kaegen Lau
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Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])
Barrelcactusaddict posted a gallery image in Members Gallery
![Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])](http://www.thefossilforum.com/uploads/monthly_2022_03/small.SAM_3437.JPG.27ecba4e1679d184d6b54f60b7736cd6.JPG)
From the album: Fossil Amber and Copal: Worldwide Localities
“Oise Amber” Creil, Oise Department, France Argiles à lignites du Soissonnais Lowermost Eocene (~56-53 Ma) Specimen C (Left): 0.4g / 15x12x5mm Specimen D (Right): 0.3g / 10x10x8mm Lighting: 140lm LED Entry nine of ten, detailing various rare ambers from European, Asian, and North American localities. French amber localities are extremely numerous and are found in 35 departments. There are at least 55 Cretaceous amber localities, contained mainly within the southern half of France; three F© Kaegen Lau
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Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])
Barrelcactusaddict posted a gallery image in Members Gallery
![Oise Amber (Argiles à lignites du Soissonnais, Lowermost Eocene [~56-53 Ma])](http://www.thefossilforum.com/uploads/monthly_2022_03/small.SAM_3436.JPG.6a9fd91474c32274219d814f5c1cbe3d.JPG)
From the album: Fossil Amber and Copal: Worldwide Localities
“Oise Amber” Creil, Oise Department, France Argiles à lignites du Soissonnais Lowermost Eocene (~56-53 Ma) Specimen A (Upper Left): 0.5g / 14x13x12mm Specimen B (Upper Right): 0.35g / 13x9x7mm Specimen C (Lower Left): 0.4g / 15x12x5mm Specimen D (Lower Right): 0.3g / 10x10x8mm Lighting: 140lm LED Entry nine of ten,© Kaegen Lau
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Hi everyone, I am not a specialist in paleontology, I would like some help in identifying these 3 stones. I found them in clay from a marine environment dating from the Cenomanian... It seems to me that there is a bivalve, a vermiform fossil (?) and one resembling a degraded bone. I do not know well the paleontological discoveries of my region, I just know that there was the discovery of a vertebra of a marine reptile and the tooth of a sauropod. Thanks a lot for your help
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Siegburgite (Cottbus Fm., 25.5-23.5 Ma [min.])
Barrelcactusaddict posted a gallery image in Members Gallery
![Siegburgite (Cottbus Fm., 25.5-23.5 Ma [min.])](http://www.thefossilforum.com/uploads/monthly_2022_03/small.SAM_3441.JPG.ca7b76f239d7fe80b0482f349d647a4a.JPG)
From the album: Fossil Amber and Copal: Worldwide Localities
"Siegburgite" Goitzsche Opencast Mine Bitterfeld-Wolfen, Saxony-Anhalt State, Germany Bernsteinschluff Horizon Cottbus Fm. (25.5-23.5 Ma [min.]) Chemical Composition: C: 81.37%, H: 5.26%, O: 13.37%, Cinnamic Acid: 0.0073% Specimen A (Top Left): 0.4g / 14x12x6mm Specimen B (Top Right): 0.5g / 14x14x8mm Specimen C (Bottom Left): 0.3g / 14x12x4mm Specimen D (Bottom Right): 0.2g / 13x10x4mm *I did not take a photograph of these specimens under longwave UV, due to the fluorescent response of Siegburgite being so weak; they© Kaegen Lau
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I sometimes stumble upon these strange fossils which I like to call 'mini surfboards'. I unsuccessfully searched a couple of times on the internet and found no similar photos to help me identify them. They've all been found on the clay layer. They all have a very similar pattern . Their size is usually around 3cm (even larger sometimes).
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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
1.4g translucent specimen measuring (mm) 16x15x10; one side presents an unbroken exterior, with slight remnants of sand, clay, and lignitic matrix. This material was recovered from the Malvern Clay Pits, east of Malvern, Arkansas. FTIR spectrum comparison of Claiborne amber to modern Shorea sp. resin points to the Dipterocarpaceae as a probable source for this middle Eocene-aged amber.© Kaegen Lau
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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
4.1g rough specimen measuring (mm) 25x18x15. This is a section of a run, with successive layers grading from translucent to opaque; portions of the sand, clay, and lignitic matrix coats the exterior as depicted. This material was recovered from the Malvern Clay Pits, east of Malvern, Arkansas. FTIR spectrum comparison of Claiborne amber to modern Shorea sp. resin points to the Dipterocarpaceae as a probable source for this middle Eocene-aged amber.© Kaegen Lau
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Claiborne Amber (Cockfield Fm., 41.3-38 Ma)
Barrelcactusaddict posted a gallery image in Members Gallery
From the album: Fossil Amber and Copal: Worldwide Localities
8.0g prepared rough specimen displaying a partially polished face, measuring (mm) 50x22x14; this piece is a transverse section, and displays numerous layers or flow lines with sequences of micro bubbles as well as sediments. This material was recovered from the Malvern Clay Pits, east of Malvern, Arkansas. FTIR spectrum comparison of Claiborne amber to modern Shorea sp. resin points to the Dipterocarpaceae as a probable source for this middle Eocene-aged amber.© Kaegen Lau
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As a later summer vacation we decided to do a road trip - Tour de France. France having many interesting destinations and things to do and collecting fossils would be one of them. As we usually don’t plan our trips beyond a few days ahead also the fossil locations were decided on the road. But when reading about Carniol it became clear it was one we had to include. Other non fossil highlights of the trip were Bordeaux, the Pyrenees, Toulouse (great museum of natural history), Lyon and of course Pont du Gard. When finding out about Carniol I did some further reading on how to get th
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This jaw fragment was found when washing clay that I brought from Carniol. Cretaceous, Aptian, Gargasian. On Reddit it was identified as Saurian and I was hoping (but doubting) a more accurate identification would be possible. Really happy with this find anyhow. more information about Carniol and my trip there
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Please help me identify these finds from the bottom of a clay cliff in Warden Point, Isle of Sheppey a - 0.5cm thick, almost flat, smooth on the other side b - i think this is not a fossil but a handle of an old knife c - round in cross section d - this is hexagonal in cross section the remaining ones are all of the same kind and the beach was full of them, i guess they may not be fossils either but what are they?
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Hello everyone. My son and i are both passionate about paleontology. During our research’s, we found these stones in red clay/sand with flint dating from Cenomanian (near Chartres, France). The stones were among the remains of bivalves and sponges. All the fossils found show strong erosion. Do you think it could be fossils or just stones? Thank you
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Hey everyone, So this summer, like most summers, my family went to my grandpa's holiday house in southern France. Seeing that we had many days with nothing planned, I managed to convince them to go fossil hunting one day. At first, I wanted to go to Lacoste, a place known for its echinoids and gorgeous white scallops, but it turns out these quarries are no longer accessible. So instead we went to Carniol, which was a little further away. After only a few hours in the car we arrived at the village of Carniol. "Village" would still be considered being generous: there are no more tha
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Was digging in vegetable patch in clay soil about 20cm below surface in back garden, south-east London, UK and found this little beauty! First fossil I've found without looking for one. I especially like the lower section of the right-hand image, where you can see the pattern is an imprint rather than a protrusion (not sure of the correct terminology!) Any ideas what it could be? I've provided a scale on the image. Reminds me of a worm! I can answer any questions.
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I need to make some molds, best (cheap) source of molding material?
OregonFossil posted a topic in Fossil Preparation
Mostly small fossils (think less than 20mm, many 2 to 3 mm). Maybe a pound or two. Brands on Amazon, other sources? The molds would be used to photograph for fine internal and external detail from casts. I am clueless when it comes to this. -
I am new and I have no idea what this is. Can someone please give me an educated guest at least?
Starstruck106 posted a topic in Fossil ID
This cylindrical object came from my neighbor whose mother was an avid artifact and rock collector. She had no idea what it was or when her mother found it but it was a long time ago up in the area of Carey, Idaho, on her mother's private property. The object is cylindrical with a small sway toward the middle of it. It is 4' tall and approximately 2 3/8" at the widest point. It is stone or clay colored uniformly aside from the ends where it has a brownish gold tinge and shows circles in the center of each end. It is very heavy given its size and seems dense it weighs 1 lb 6.1 oz. Any he -
About 500m ASL, we had fun, found a clay bank and tried for shark teeth. In the end everything was too fragile, the shells disintegrated as we extracted them and the only solid things were the infilled burrows. Thought I had to share anyway... it was a fun time. https://youtu.be/ZOMRLKpItPI and some photos of the lunk we bought out... that is crumbling fast.
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