explorer1 Posted October 20, 2011 Report Share Posted October 20, 2011 Does anyone have a preference of what metal detector is best in prospecting for fine gold in hard rock. Sure rock crushing random samples is one way. But after crushing countless pounds it can get tiring. First I prefer detecting samples or veins until a hit is achieved then sampling. But not all fine gold within hard rock is detectable. I'm just looking for the best detection device out there prior to sampling. I now use a Fisher VLF with a 6.5" coil. I heard pinpointers are excellent like the Falcon. Any feedback would be appreciated.Jim Link to comment Share on other sites More sharing options...
Tracker Posted October 21, 2011 Report Share Posted October 21, 2011 Does anyone have a preference of what metal detector is best in prospecting for fine gold in hard rock. Sure rock crushing random samples is one way. But after crushing countless pounds it can get tiring. First I prefer detecting samples or veins until a hit is achieved then sampling. But not all fine gold within hard rock is detectable. I'm just looking for the best detection device out there prior to sampling. I now use a Fisher VLF with a 6.5" coil. I heard pinpointers are excellent like the Falcon. Any feedback would be appreciated.JimI use the Gold Bug ll with the 6" eliptical with good success. IMO the GBll is better than the Falcon on a pinpointer for this purpose. Link to comment Share on other sites More sharing options...
beepinpete_WA Posted October 21, 2011 Report Share Posted October 21, 2011 Hey JimOver here in Australia the gold mines use a piece of gear called an "XRF Scanner"Basically this equiptment looks like a radar speed gun and can scan all rock samplesin situ for a full mineral readout to a 0.001% increment or in a PPM readout, theydont come cheap, but are a guaranteed method for finding all mineral elements in anyrock sample, they are also used by gold buyers to scan for purity of nuggets/rings andcombined with a specific gravity test to work out the volume and purity of gold specimens.Here is a bit of info :: http://www.panalytical.com/index.cfm?pid=130Happy HuntingPete in WA Link to comment Share on other sites More sharing options...
Reno Chris Posted October 21, 2011 Report Share Posted October 21, 2011 "XRF Scanner"Cool device, I've fiddled with one. Gonna cost $30,000 and up. Only penetrates about one inch, has a sensor window about 1/2 inch square. Link to comment Share on other sites More sharing options...
Admin nuggethunting Posted October 21, 2011 Admin Report Share Posted October 21, 2011 Hey Guys, Hard to beat the Goldbug 2 on hardrock prospecting, whether it's in the mine scanning walls or working dumps. I have found gold in the walls of old gold mines and on tailing piles with the Bug2. Link to comment Share on other sites More sharing options...
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