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Collenia undosa
Approximate dimensions: 77mm x 67mm x 32mm
260mm wide and 300mm deep
Amethyst Natural Point/Generator
Weight: 783 grams
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN018 Buddha Collenia undosaManganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 4 grams Approximate dimensions: 24mm x 22mm x 13mm 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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US$ 139.00