MC118 Marillana Conglomerate slab, cut and polished on one side .
Dimensions at widest points approx. 170 mm x 80 mm x 10 mm thick.
Weight is 298 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. The clasts in this example are comprised mainly of banded jaspers, quartz and chert.
