Tarz Posted May 1, 2018 Share Posted May 1, 2018 Is it worth while detecting old deep lead mullock heaps? The heap I have in mind comprises of granite and ironstone rocks and kaolin clay. Link to comment Share on other sites More sharing options...
Northeast Posted May 1, 2018 Share Posted May 1, 2018 Clay and ironstone sounds ok. Granite not so much but maybe. Any quartz? Although if there are mullock heaps there must have been gold so forget the particulars of what rocks are there and just go beep on them . You'll never never know if you never never go. Welcome to the forum and we'd love to see pictures if you find some yellow stuff!! 1 Link to comment Share on other sites More sharing options...
ophirboy Posted May 2, 2018 Share Posted May 2, 2018 Deep lead mines usually only processed the pay dirt that was considered profitable a certain distance above bedrock ( in Australia that was 6-12 feet and the rest was discarded onto the mullock . So whilst there is the odd chance there could be a unknown middle or upper level streak the miners discarded , that chance would be fairly low . There are miles of large deep lead mullock heaps in Creswick near Ballarat and they are mostly sticky yellow clay .The Australasian mine in creswick was Australia’s worst mine disaster . If you can find small scale deep lead shafts the pay dirt was usually loaded on horse carts next to the shaft for transportation to the puddling mills and there was always some spillage . so these areas have some potential for detector prospectors. 3 Link to comment Share on other sites More sharing options...
Tarz Posted May 2, 2018 Author Share Posted May 2, 2018 Do I understand then, that the kaolin clay washed away from the mine entrance, is not worth detecting? Link to comment Share on other sites More sharing options...
ophirboy Posted May 2, 2018 Share Posted May 2, 2018 I think the condensed answer is this , if it’s a small scale deep lead mine ( worked by a small group or syndicate there’s a chance of dropped or missed gold around the mullock and loading piles , on the other hand if the heaps are very large and extended you can put this down to large company deep lead mining and the chance of finding gold on these processed heaps is slim. Link to comment Share on other sites More sharing options...
Steve Herschbach Posted May 2, 2018 Share Posted May 2, 2018 For me it just comes down to time and whether or not there are better options. Detecting anything is always going to be a gamble so all you can do is take your best shots with whatever time you have. Nobody can say with certainty that any given pile of dirt contains no gold. The nice thing about detecting is that it’s fairly easy and so when in doubt, detect anything that looks interesting and see what happens. Remember that many a nugget has been found by novices who were successful because they put their coil where an expert would not because “there can’t be any gold there”! 3 Link to comment Share on other sites More sharing options...
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