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Deteknix X-pointer is PI not VLF. Better for gold prospecting but has some issues... like fast battery drain etc.

After reading a post from rumblefish he had asked the question? "So I got to wondering, what is the minimum flake/nugget size that can be detected? Could anyone with an SDC (or even a Pro Pointer) post and tell me their results?" So I thought I would try a small nugget with the x-pointer, don't know the size of this nugget but the x-pointer would not detect it, Yes it was on level 4..

Oh yeah, gotta get me one of these!!

Auriferous: In my case contains 20388 grams/ton Au (20.4kg/ton) Introduction: I found a single extremely high grade gold rock specimen and I am unable to locate more. Lode and Placer mining equipment would not find these other than a lode process crushing everything in the area. Specimens at these grades are worth more than the gold they contain. I do not own a metal detector but have spent a good hundred hours learning what I can about the technology and systems. Cold Rock: I believe I need a metal detector system that is optimized to locate cold rocks (non-ferrous negative hot rocks, opposite to ferrous hot rocks). I cannot obtain a resistance reading with a multimeter that is capable of reading millions of ohms even though the gold concentration is extremely high in both the assay results and with the naked eye. To me this means it cannot be metal detected as a solid metal object (nugget) of any size. However it might hopefully be detected as a cold rock of some size. Ground Conditions: Dry and no salt. Size: Shale (loose rock) slope with a little vegetation on top of it. The size of the rocks are mostly 2 inches to 12 inches with a few larger rocks going up to about 4 feet. There is very little "gravel" size rocks (under 3/4in). This specimen is about the size of a baseball (3in/75mm diameter) that I cut in half. The other half went to the assay lab (had I known I would have sent a MUCH smaller sample size). This half of the specimen weighs 146grams. The other half that got fire assayed weighed 180grams. So the original specimen before I cut it in half weighed at least 326grams. Mineralization: The location contains very little mineralization (as in very little iron). The only sign of "iron" is decaying/oxidizing pyrite. Some of the rocks have a lot of pyrite in them. I suspect some of the "pyrite" is arsenic based (Arsenopyrite) but I have not had an assay on those to confirm. Even some of the Au found in this specimen may be rare gold pyrite (Aurostibite). Trash: There is very little "trash" (as in manmade metal objects). I would even go so far as to say no trash whatsoever but I'm sure there is something in there. Certainly no aluminum wrappers that have been shredded thru a lawn mower. ASSAY RESULTS: Au = 20388.2 gm/t Ag = >100 ppm Mo = 23 ppm Cu = 435 ppm Pb = 1471 ppm Zn = 1032 ppm Mn = 1446 ppm As = 34 ppm Sr = 89 ppm Cd = 9.2 ppm Sb = 39 ppm Bi = 891 ppm Fe = 5.57% S = 5.79% What Metal Detector system to use for Auriferous rocks (cold rocks)? If I had not made this post to get feedback, my research/learning points me to purchasing a IB/VLF system like the White's GMT with a few different search coils for the first 12 inches of depth. However I do not feel confident in that decision because maybe it should be a Fisher Gold Bug Pro instead, or something else. Can a deep large object metal detector (relics) work for detecting "large" cold rocks like this beyond a few feet of depth in the ground conditions described above? High rez pictures of this specimen that I need to find more of are attached!

I do not understand why a pinpointer would affect the coil when it is off??? Is there a constant and therefore never actually off signal from the pinpointer? Or, does the transmit on the coil induce a signal that the detector then recieves? I never take my pack off and leave it anymore, "cause i ain't smart enough to pick it up before I wander over the next hill-much to my embaressment! Thank you for your always complete and thoughtful replies fred

Well, this has been a long time in the making. White's is finally shipping their long awaited new pinpointer, the Bullseye TRX. It looks very promising indeed - automatic ground balance with tracking, in a pinpointer? Wow! Shipping now to dealers. The ground balance feature means this has the potential to be the pinpointer prospectors have been waiting for. I will get one ASAP, give it a spin, and report back. Highlights 12 kHz operating frequency Audio and/or Vibrate Alert Automatic Ground Balance with Tracking Automatic Power Off Alternate Battery Operation (2-AA or 1-9V) Up to 20 hours on two AA batteries or a single 9-Volt battery Built in LED Light Lost Pinpointer Alarm Overload Indicator Replaceable Shell Rugged, Weatherproof Design Ruler, with Inch Markings Simple, One-Button Operation Target Ratcheting Holster (up to 3” belt) Lanyard Attachment Loop on TRX and Holster 10" overall length 6.5 oz / 185 grams with two AA batteries Full Two-year Warranty MSRP $159.95 Manufacturer website page http://www.whiteselectronics.com/bullseye-trx-pinpointer

G'day, I need to buy a pinpointer ... its a toss up between the Minelab Pro-find and the Garrett pinpointer. My uneducated guess right off the top of my head is that they would have the same performance. Any advice on any possible advantages of one over the other? The advertising for the Minelab pinpointer says that it is a VLF. Is the Garrett also a VLF? Are there any PI pinpointers sold, by anyone? Regards, Rob (RKC)