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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
8cm x 4cm - 475g
16 x 15 x 2
Approximate dimensions: 37mm x 36mm x 16mm
This Amethyst cave comes from Brazil
Total weight: 504 grams
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN032 Cube 8cm x 4cm - 475gManganese Nodule (Polymetallic) Clarion Clipperton Fracture Zone Pacific Ocean Total Weight: 2. 2 grams Approximate dimensions: 21mm x 12mm x 11mm 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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