EL NINO77 Posted August 27, 2023 Share Posted August 27, 2023 I have a simple question.....find a VLF detector that can detect 0.1 gram of gold under an ironstone....? And in this case, the VLF detector cannot beat a good PI detector... with a certain type of detection, the PI detector always wins ... ...so everything depends on how high the stones are mineralized.... Link to comment Share on other sites More sharing options...
brys Posted August 28, 2023 Share Posted August 28, 2023 I will test a gold ring under a dense stone this stone is comprised of molten rock Link to comment Share on other sites More sharing options...
detector Posted August 28, 2023 Author Share Posted August 28, 2023 On 8/27/2023 at 4:14 PM, EL NINO77 said: I have a simple question.....find a VLF detector that can detect 0.1 gram of gold under an ironstone....? And in this case, the VLF detector cannot beat a good PI detector... with a certain type of detection, the PI detector always wins ... ...so everything depends on how high the stones are mineralized.... what about multi frequence VLFs like Deus 2? they say it is more stable on mineralized soils and can penetrate conductive rocks Link to comment Share on other sites More sharing options...
brys Posted August 30, 2023 Share Posted August 30, 2023 I am doing an ancient stream with rocks and stones and d2 is silent but soil round the edges has iron sounds aplenty so I presume it won’t find coins under some stones which maybe to dense Link to comment Share on other sites More sharing options...
detector Posted August 30, 2023 Author Share Posted August 30, 2023 On 8/30/2023 at 1:42 PM, brys said: I am doing an ancient stream with rocks and stones and d2 is silent but soil round the edges has iron sounds aplenty so I presume it won’t find coins under some stones which maybe to dense Link to comment Share on other sites More sharing options...
brys Posted September 3, 2023 Share Posted September 3, 2023 Nope don’t wanna go back as it’s unproductive Link to comment Share on other sites More sharing options...
detector Posted September 27, 2023 Author Share Posted September 27, 2023 Link to comment Share on other sites More sharing options...
brys Posted October 3, 2023 Share Posted October 3, 2023 This rock is heavy and dense ,it’s from the beginning of time ,tungsten burrs won’t touch it it’s so hard ,indentation from when it was in a liquid state Link to comment Share on other sites More sharing options...
chrisski Posted October 3, 2023 Share Posted October 3, 2023 1 hour ago, brys said: This rock is heavy and dense ,it’s from the beginning of time ,tungsten burrs won’t touch it it’s so hard ,indentation from when it was in a liquid state Are you saying a tungsten chisel has no effect? We’re you tapping to split it smoothly or whacking with force? To me it looks like a rock that has been rolled in a river or glacier to get rounded out. Link to comment Share on other sites More sharing options...
Geologyhound Posted October 16, 2023 Share Posted October 16, 2023 On 10/3/2023 at 5:41 AM, brys said: This rock is heavy and dense ,it’s from the beginning of time ,tungsten burrs won’t touch it it’s so hard ,indentation from when it was in a liquid state Keep in mind that if something is molten, it would adhere to anything it touches unless it is dropped in water or solidifies before it touches something (e.g. a lava bomb). Lava bombs have a very typical spindle shape, and being volcanic ejecta, they also are full of gas pockets. Your rock does not have any of the hallmarks of a lava bomb. Even if this was some sort of spatter bomb that landed in water, it would have a typical spindle shape and should still have vesicles (gas pockets). The overall rounding on this looks much more like it is the result of river or ocean tumbling. The little pockmarks are a type of weathering pattern where weathering initially takes advantage of a small spot on the surface of the rock (due to salt, fractures, crystal structure, differential cementation, etc.). Once the weathering starts on a spot, there is now more surface area available. Progressive weathering deepens the pit as the surface area grows. Link to comment Share on other sites More sharing options...
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