Pyrite Plants--Gold and Green

[Lucid_Bot]

Last week I was hunting in my usual location in Allegheny County Pennsylvania (Glenshaw Formation) and found that several of my specimens have splotches of what appears to be pyrite crystals. With some of the broken fossils I could see that even the insides contained gold-colored pyrite. On the other side of these plates were what looked like rootlets covered in a pale green mineral. Is this pale green mineral pyrite as well? Is there some way I could test this? Thanks for the help.

Edited February 17, 2023 by Lucid_Bot
Added formation

[JBkansas]

This the same formation? looks like pyrite is known:

https://xpopress.com/news/article/362/world-famous-st-clair-fern-fossils

Edited February 18, 2023 by JBkansas

[Lucid_Bot]

3 minutes ago, JBkansas said:

This the same formation, looks like pyrite is known:

https://xpopress.com/news/article/362/world-famous-st-clair-fern-fossils

Sorry, forgot to add Glenshaw Formation.

[JBkansas]

Pyrite is also in Glenshaw.