Golden Fern Fossil | Pennsylvania matrix or Iron Pyrite is a

or Iron Pyrite is a pale brass-yellow iron sulfate (FeS2) mineral

it is mined for the production of sulphuric acid for the chemistry and fertilizer industry

Found in Franklin and Sterling Hill

55 oz and is 3

Golden Fern Fossil | Pennsylvania matrix or Iron Pyrite is aThis striking fossilized fern comes from the historic Pottsville Formation, dating back to the Pennsylvanian Period (~300 MYO) when vast coal swamps covered much of ancient Earth. The frond impressions display a rare golden coloration, caused by natural mineralization that highlights the delicate structure of the plant. This item is 10 x 6 and weighs 3 lbs 12 oz