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it is mined for the production of sulphuric acid for the chemistry and fertilizer industry
This aragonite specimen from Morocco features layered
with preserved insect inclusions suspended within the resin
Found in Franklin and Sterling Hill
Magnesium is a silver-metallic mineral part of the metals family
Golden Fern Fossil | Pennsylvania matrix it is mined for theThis 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
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