How to treat very small pyritized fossils?
I have a batch of fossils, mostly small gastropods, from the Waco shale pit. Most of them look pyritized to some degree, so I want to treat them to be sure they don't fall apart. Thing is, they're really small- most under 1cm, some as small as 1mm square, and one ammonite that's something like 3mm across.
My original plan was to soak them in Iron Out overnight, wash them with dish soap and a toothbrush, and then coat them in butvar. Is this still the best way to go? Should I soak th
an interesting topic. Here is an example of two ammonites from the same site that have different mineralization and hence different survival in my boxes. Was told once that the moisture that is shed in the pyrite disease process is sulfuric acid. I have had boxes rot through and of course labels as you can see from one of the pics.
