MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN027 Faceted Approximate dimensions: 42mm x 29mm

Approximate dimensions: 42mm x 29mm x 12mm

Unakite is said to be a stone of vision

198 x199 x 13 mm

Size: 2 cm x 1

MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN027 Faceted Approximate dimensions: 42mm x 29mmManganese Nodule (Polymetallic) Clarion Clipperton fracture zone Pacific Ocean Total Weight: 3. 17 grams Approximate dimensions: 18mm x 17mm x 15mm 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.