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Showing results for tags 'pyrite disease'.
Found 8 results
Curious about iron and pyrite in the Hell Creek Formation
Maniraptora posted a topic in Questions & AnswersHey all! When I went on a collecting trip in the Hell Creek Formation in Montana, there were many iron concretions, and I've noticed that some specimens from there appear to be iron-stained. This makes me wonder if pyrite could be among the minerals involved in fossil preservation there. Are some of the bones found in the Hell Creek pyritized, and how could those be distinguished from others preserved differently? If so, do those Hell Creek specimens ever develop "pyrite disease," and what would be the warning signs to look out for? Thanks so much for sharing your knowledge!
Lyme Regis plesiosaur propodial with pyrite disease - how to treat
pachy-pleuro-whatnot-odon posted a topic in Fossil PreparationHi all, A couple of years ago I acquired a lovely pair of plesiosaur propodial bones from Lyme Regis. It was a matched pair of both humerus and femur. Today, when I was looking to make space in my cabinet for a new acquisition I had made, I discovered some odd dust next to the humerus that, on inspection and to my horror turned out to be pyrite bloom! I immediately removed the specimen from the cabinet, checked the other podial and nearby fossils, and used a tooth brush to brush of the most direct traces of pyrite decay. But the question is: what now? How do I ensure the propodial's prese
Help please! Newbie with Deteriorating Ammonite-type Fossil
starksight posted a topic in Questions & AnswersI started off rinsing with water until I realized it was causing all the fine detail to disintegrate away (I saw little suction cups on the tentacles!). I think it'a pyrite disease? Is it? I dunked it in a bowl of vinegar and it it still there now, hoping to stop the water damage and it seems to have halted the rapid deterioration, but now I'm concerned about the acid causing damage. What should I do next? I read online that a phosphate treatment may replace the escaping sulfur and stop the oxidation and that a recommended field treatment would be common fertilizer. How
From Westbury-on-Severn with pyrite
pachy-pleuro-whatnot-odon posted a topic in Questions & AnswersHi all, I recently acquired the below fossil, a pair of articulated jaws, purportedly from Pachystropheus rhaeticus, still with teeth, found at Garden Cliff/Westbury-on-Severn. Whether I wasn't paying proper attention when I bought it or just hoping there wouldn't be any pyrite on the piece, when I received the specimen it turned out that there are quite numerous pyrite-crystals growing to the side of the fossil. As it's quite an unusual piece that I'd rather like to keep, I'm now looking for people with experience with pyrite from the Garden Cliff location. In essence, I'd like to
FossilFrenzy posted a topic in General Fossil DiscussionMy fossilized bivalves seem to be turning gold in some areas, and some parts have chipped off . Is this "pyrite disease"? Is it due to being on wooden shelving? I wouldn't say my climate is particularly humid. My great uncle gave these five to me when I was seven, so they are special and I would like to save them None of my other fossils or minerals are exhibiting these signs?
A safe container and place for displaying a pyrite ammonite
ziggycardon posted a topic in Questions & AnswersHi I have a question regarding storing and safely displaying a pyrite fossil. I have read a great deal about pyrite disease so I know that's something to be carefull of and I have read you best keep them away from humid and store them in an air-sealed container. And now that's where I am heading with this question, what is all considered as a possible air-sealed container? I am currently keeping my pyrite ammonite (Pleuroceras Spinatum from Buttenheim in Germany) in a small transparent box as seen in the photo below, but is this good enough? Is this air-tight and will this prot
Handling small pyrite fossils
Max-fossils posted a topic in General Fossil DiscussionHi all, So a few weeks ago now I went to the location Carniol in France to look for fossils. And we found lots! Most of the finds are pyrite ammonites, but we shouldn’t leave out all the belemnites and little shell steinkerns we found. All the fossils are from the Aptian stage of the Early Cretaceous, and apart from the belemnites all have been replaced by pyrite. So I've already taken out all the belemnites and rinsed the clay off of each one (they’re looking gorgeous right now!), because their shells are not made of pyrite (and seem not to require any special treatme
oldtimer posted a topic in General Fossil DiscussionI have a sand dollar that is mostly covered by pyrite. It still has most of it's luster. I have read about pyrite disease and am wondering what I should do to help preserve it. I have also read that having pyrite in the fossil showcases my affect other fossils. Is this true? What should I do to bring back some of the luster? And how would be a good way to seal it to prevent the turning or ruining of the fossil and others?