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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
5cm x 2cm - 32
Specimen 2: 6cm x 4cm x 3cm - 44
3cm x 15cm
Total weight: 196 grams
Approximate dimensions: 14cm x 10
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN030 Smudge 5cm x 2cm - 32Manganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 1. 84 grams Approximate dimensions: 17mm x 12mm x 12mm 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.