Heath, If I'm right about the red oxidised layer in your photo 16. it would indicate redox processes. Most observers leave there analysis as: oxidised, Fe.III or 'rust'! The reality is that Fe. is possibly the most promiscuous element in the universe and takes many, many forms. Probably of most interest in this case would be Haematite (red not orange, and Magnetite - magnetic.) As these forms can precipitate in anaerobic conditions, mediated by microbial REDuction/OXidation processes, iron and especially magnetite, in or on your fossil, is certainly worth investigating? Michael.
Please feel free to correct me on any part of my blog, i would also welcome any help that can be offered in correctly identifying some of my fossil finds All the best to all Heath.
Heath, If I'm right about the red oxidised layer in your photo 16. it would indicate redox processes. Most observers leave there analysis as: oxidised, Fe.III or 'rust'! The reality is that Fe. is possibly the most promiscuous element in the universe and takes many, many forms. Probably of most interest in this case would be Haematite (red not orange, and Magnetite - magnetic.) As these forms can precipitate in anaerobic conditions, mediated by microbial REDuction/OXidation processes, iron and especially magnetite, in or on your fossil, is certainly worth investigating? Michael.
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