MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN036 Saccocoma Specimen 3: 8cm x 3cm

Specimen 3: 8cm x 3cm x 3cm - 64

Rhodochrosite Pendant

Shape: Teardrop

with faceted cut stone

Specimen 1: 8cm x 1cm x 1

MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN036 Saccocoma Specimen 3: 8cm x 3cmManganese Nodule (Polymetallic) Clarion Clipperton Fracture Zone Pacific Ocean Total Weight: 0. 83 grams Approximate dimensions: 14mm x 10mm x 8mm 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.