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This aragonite specimen from Morocco features layered
that has a second generation of crystals that form atop the first generation crystals' prism faces
55 oz and is 3
or Iron Pyrite is a pale brass-yellow iron sulfate (FeS2) mineral
with preserved insect inclusions suspended within the resin
Golden Fern Fossil | Pennsylvania matrix This aragonite specimen from MoroccoThis 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
US$ 10320.00
US$ 1900.00
US$ 19.90
US$ 10.00
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US$ 94.00
