80195614 Polymetallic nodule, also called manganese

80195614 Polymetallic nodule, also called manganese nodule, rock concretion on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. The core may be microscopically small and is sometimes completely transformed into manganese minerals by crystallization Blake Plateau, Atlantic ocean, collected in 1970's John Cancalosi All images are copyright protected and remain the property of Ardea Picture Library Ltd. Permission for use is only granted once fee has been agreed and payment made and all digital files must be destroyed unless agreed otherwise in writing. Images must be credited: Photographer Name / ardea.com www.ardea.com

Called Manganese Nodule

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