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25” x 1” and weighs
it is mined for the production of sulphuric acid for the chemistry and fertilizer industry
creating a beautiful contrast of textures and tones
This aragonite specimen from Morocco features layered
Magnesium is a silver-metallic mineral part of the metals family
Golden Fern Fossil | Pennsylvania matrix 25” x 1” and weighsThis 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$ 129.00
US$ 120.00
US$ 24.99
