Polished Beaton's Creek auriferous conglomerate BC122

BC122  Beaton's Creek auriferous (gold bearing) conglomerate . A rough rock, cut and polished on one side with a natural back .

Incredibly rare !   

Pyritised pebbles !

Dimensions at widest points approx. 190 mm high x 135 mm wide  x 60 mm thick

Weight is 1,949 grams.

From Nullagine in the Pilbara region of Western Australia.

Gold mineralisation occurs within the Beaton's Creek conglomerate.
The geological unit is the Hardey Formation with an age of approximately 2.75 billion years.
Coarse and fine gold is seemingly related to higher concentrations of pyrite within a 200 metre sequence of poorly-stratified, poorly-sorted, polymictic, pebble-to-boulder ferruginous conglomerate.