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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
9 grams (64
slips over head and tightens or can leave it longer
Size Range from 2mm to 6mm
From India
570mm wide and 35mm thick and has 6 trilobites
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN038 Deep Sea 9 grams (64Manganese Nodule (Polymetallic) Clarion Clipperton Fracture Zone Pacific Ocean Total Weight: 1. 66 grams Approximate dimensions: 17mm x 13mm x 10mm 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.