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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Weight: 309 grams
Set in sterling silver
198 x199 x 13 mm
the Dragon Turtle is a symbol of ancient wisdom and prosperity
260mm wide and 300mm deep
MANGANESE NODULE (POLYMETALLIC), Pacific Ocean XMN027 Faceted Weight: 309 gramsManganese 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.