@asxbuff, most of the major players at Pilgangoora,Wodgina,Greenbushes and Mt Cattlin are on ground formerly mined for tin,tantalum and tantlaite..... The Bynoe and Arunta pegmatite fields in the Northern Territory where CXO ,LTR and Slipstream resources have taken up leases have numerous old tin and tantalum mines - surprise surprise - perhaps you might like to point that out to your broker