These Carboniferous ferns are preserved in the mineral pyrophyllite, which gives them a bold white or silver color. The pyrophyllite is a pyrite pseudomorph.
Are you St. Clair Fern Fossils? Upgrade your listing to a paid listing to remove other advertisers from your page and for
premium positions in our directory. From $10 per month. Click here.
These Carboniferous ferns are preserved in the mineral pyrophyllite, which gives them a bold white or silver color. The pyrophyllite is a pyrite pseudomorph.
