MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN022 Stromatoporoid This rare meteorite material showcases

This rare meteorite material showcases intricate patterns and textures

Natural Chunks

Fossilised Turtle Poo

5cm x 10cm

MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN022 Stromatoporoid This rare meteorite material showcasesManganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 4. 67 grams Approximate dimensions: 27mm x 17mm x 13mm 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.