I recently received an interesting request from Baden Coakley
Baden is writing a book relating to the metal poppet heads used in Australian mining and he has asked for any information regarding a picture he has provided. I redirect Baden's questions to any Fyansford.com followers with direct experience and thereby first-hand knowledge of the cementies and their quarry.
My first thoughts: Fyansford/Batesford quarry... Soil testing /sampling... underground rail line...