Polished Marillana Conglomerate slab MC121 oldest agate in the world 100 mm x 50 mm

100 mm x 50 mm  x 21 mm

CO118  DeGrussa copper ore slab

Natural rough back and sides

DOT109  Tumble polished Wanong Dendritic Opal

Weighs 709 grams

Polished Marillana Conglomerate slab MC121 oldest agate in the world 100 mm x 50 mmMC121 Marillana Conglomerate slab, cut and polished on one side . Dimensions at widest points approx. 190 mm x 110 mm x 10 mm thick. Weight is 381 grams. . From Marillana station in the Pilbara region of Western Australia. Conglomerate is a sedimentary rock consisting of individual pebbles (clasts) within a finer grained matrix that have become cemented together. Conglomerates are a very common rock type that occur in numerous locations world wide.