Polished Marillana Conglomerate slab MC123 Marramamba our "Black Jasper Conglomerate" is

our "Black Jasper Conglomerate" is a polymictic pebble and cobble conglomerate

Lilac Mookaite cut and polished on one side with a rough natural back

BA114  Polished Brazilian Agate slab

Dimensions at widest points approximately 125 mm x 90 mm x 12 mm thick

Chinese Writing Stone is a porphyritic basalt (porphyry) with groups and rosettes of plagioclase feldspar

Polished Marillana Conglomerate slab MC123 Marramamba our "Black Jasper Conglomerate" isMC123 Marillana Conglomerate slab, cut and polished on one side . Dimensions at widest points approx. 180 mm x 120 mm x 7. 5 mm thick. Weight is 249 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.