Polished Beaton's Creek auriferous conglomerate BC105

BC105  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. 100 mm high x 85 mm wide  x 50 mm thick

Weight is 776 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.