MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN019 Barb Age-Proterozoic 800 million years old

Age-Proterozoic 800 million years old

Weight - 266 grams

5 cm x 3 cm approx

640 mm wide and 400 mm deep

Please note that the optimal angle is usually a little down and angled away from the direct line of the backlight

MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN019 Barb Age-Proterozoic 800 million years oldManganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 5. 38 grams Approximate dimensions: 22mm x 20mm x 19mm 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.