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Showing results for tags 'clean'.
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Hello y’all! Since my last brach prep thread, I have actually prepped another brachiopod that I intended to make this thread about, but it turns out that it had been crushed prior to fossilization. I decided that it wasn’t worth writing home for, so I present to you: Project Sticky! Here it is before any prep: Now, the name is self explanatory: the matrix is so sticky, it’s pulling off a layer of shell with every rock flake!!! You can see an area where it pulled off much more than everywhere else: I decided that while this one will be a rough brach, I might as well finish it. I’m still trying to learn, so really this is partially a practice prep. Anyways, here it is after a total of 40 min prepping: Still far from done. Aaand, when I went to hammer some of the excess matrix, this got exposed: Looks like this rock will have a double brach prep. Should make it look more eye-appealing when done. Anyways, I did all this yesterday, and it took about 1 1/2 hours. Didn’t take any pics, but I did paraloid the exposed parts of the main shell. Next update may come tonight, or tomorrow morning. Hope y’all enjoyed this, have a great day!
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Like the title states, let's see your results with acid prepping! I have found not as much info on this style of prepping, so please feel free to give some details as to how it was done, i.e. time, technique, soak sessions, etc. Have a great day everyone~
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Two weeks ago I had the opportunity to collect a few specimens from the Waldron Shale of Indiana. I was hoping that a little vinegar would take off a bit of residual matrix left on a few specimens. It did not work well as little came off. Does anyone have experience cleaning these fossils????? Thanks for any tidbits of information!!!! Mike
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- 23 replies
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- tricertops
- prep
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Title says it all, this is my only rugosa fossil and its half in a martrix, how would I go about removing my peice from it? What tools would I need, and is it possible? Thanks in advance!
- 4 replies
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- matrix picking
- matrix cleanup
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Hello everyone, does anyone know the best way to clean these? I can’t sadly prep them with a sandblaster or air gun but I wanted to see if there is a way to dunk them in something? I’ve already washed them with soap and water and used a toothbrush. Any recommendations would be great!
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What's covering my plesiosaur vertebra? How to clean
pachy-pleuro-whatnot-odon posted a topic in Fossil Preparation
Hi all, I recently decided to buy the below plesiosaur vertebra after having seen it for a long, long time. It dates to the Callovian of the Oxford Clay and was found at Peterborough. I suspect it may be attributed to Muraenosaurus leedsi, as it comes from a cryptoclidid plesiosaur, but is both larger and more elongate that the typical Oxford Clay Cryptoclidus vertebrae I'm familiar with. Supposedly coming from an old collection, it has a blackened exterior that doesn't cover the entire piece, with the more common buff colour visible underneath. As such, I expected the dark colouring to be simple dirt or may be some kind of consolidate that could be removed using acetone to leave a nice and clean looking vertebra in its place. However, since having tried acetone cleaning, the dark colour doesn't come off - suggesting that it isn't surface dirt and any consolidate, if present, is not soluble in acetone. I've also noticed that the black colour doesn't spread equally across the vertebra, which is most noticeable towards the top on the front face (first image) where one half of the vertebra is buff, the other black, with a hard separation in between. As this mottled pattern can be seen in other places on the vertebra as well, I thought that, may be, the vertebra might have been in a fire and have become covered in soot. I find additional support in the latter hypothesis in very brittle pieces of bone in one or two spots, with a charcoal-like grainy texture. Lastly, then, I've spotted a tiny edge of yellow staining/infill in an area where the vascular structure of the bone is exposed, with some white infill in an area adjacent - which I've now started worrying might be pyrite. My questions to you are: Origin of the blackening: Does the black clouding of the vertebra look like natural preservation? Related to the above: could the black clouding be due to pyrite decay? In contrast: could exposure to fire cause the clouding pattern seen on the vertebra? What consolidate might have been used to result in such colour patterning? Cleaning: Is there a way to remove soot from a fossil? Has anyone tried? Other than removal by acetone, what other ways might I try to remove an old, darkened consolidate? In case of decayed pyrite, I don't think there's anyway to clean the surface, other than, may be, through careful sandblasting, is there?- 57 replies
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- plesiosaur
- vertebra
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How to clean & store sand dollar fossil for newbie
Norcalnovice posted a topic in Questions & Answers
Hi, First time on this site and in need of advise. A BF & I found this sand dollar fossil at Stinson Beach a couple years ago. I want to make an effort to ensure I’m storing it right. I’m also curious how to clean at least the sand off, but maybe separating the large broken chunk from the (fingers crossed) undamaged sand dollar attached. Would that be detrimental to the fossil? thank you for all time & help, I can confidently say I know nothing. X Jake- 7 replies
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- clypeasteroida
- sand dollar
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I recently aquired this Glossopteris. It has a green coating which looks like algae. How do I remove this without damaging the fossil ?
- 6 replies
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- glossopteris
- algae
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So with the lockdown and all we’re finally moving all the boxes still at the parents over to here.. well..we no longer have a useable carport.. Going to go through then over the weekend and sort the junk from the keeps. Should greatly reduce what’s there by the time we’re done (used to pick up every fragment, a bit more refined now.) They’re stacked 2-3 deep in places in this picture. @Jesuslover340 we’re in for a very long weekend, ha!