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This specimen was found in the Democratic Republic of Congo (DRC)
5" and weighs 16
It is commercially produced by electrolysis of molten magnesium chloride (MgCl2) processed from seawater and the reduction of its compounds
The slab features beautifully preserved fern fronds with excellent detail and contrast
Azurite is a unique deep blue mineral formed in copper deposits that have weathered and oxidized
Barite Sand Concretions | Morocco element This specimen was found inThese Barite Sand Concretions from Morocco, date back to the Cretaceous. They form as a result of mineral rich waters moving through sand, precipitating barite crystals that bind sand grains into concentric patterns. Surface erosion then accentuated differences to create the distinctive shapes and surface banding. This item is 5 x 4 and weighs 22. 45 oz.
US$ 21.00
US$ 42.00
US$ 222.50
