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Showing results for tags 'silicon'.
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John Carter posted a topic in Fossil IDDear Colleagues please help me figure it out. looks like a flint arrowhead. but no wonder, there are a large number of them. but it is interesting because there is inclusion inside .. personally, I clearly see the spine, head, gills, eye, and .. scales (. in the center of the fish, in the head and in the abdomen). but this is unrealistic, because animal organic matter is impossible in silicon rock. how to explain it? And is it even a fish? Thanks.
The old pyritized oxidation chesnut...
phillipdmatthews posted a topic in Questions & AnswersHello to Everyone... I'm hoping that someone might be able to advise me about preventing oxidation on a pyritized ammonite. I have no doubt that this question has cropped up before and wondered of anyone had some good advice. I'm reluctant to immerse it in acetone (Seems a tad aggressive?) I know that polishing it will only be a temporary fix. So... Two questions - what can I use to polish it back to a shiny finish and... Two... I do have some clear, low viscosity, pure silicon oil - I use it to fill vintage compasses that I restore. Does anyon
How do I make good fossil impressions?
gobbler716 posted a topic in General Fossil DiscussionI found some fossils on private property that I may not remove. What materials can I use to make some impressions? I make plaster casts of animal foot prints all the time, but this is different. These are ones for which I have photos, but there are a zillion more in this area....some of these are probably not fossils.