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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
Weight: 489 grams
11 cm x 6 cm approximately
the rocks are wet in the first
Total weight: 836 grams
Polished Crystal Egg Carving
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN021 Late Cretaceous Weight: 489 gramsManganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 3. 58 grams Approximate dimensions: 20mm x 16mm x 15mm Comes in a membrane display box. Manganese nodules are found on the deep ocean floor. The nodules are mainly composed of iron and manganese oxide, but may also contain nickel, copper and cobalt. It is estimated that the nodules grow at an extremely slow rate of only a few millimetres per million years.
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