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Reno Chris

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Reno Chris last won the day on January 3 2019

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  1. Iron is the 4th most common mineral in the earth's crust, with many rocks containing significant amounts of iron minerals. Both igneous ( includes both volcanic rocks and crystalline rocks like granite) as well as metamorphic rocks (rocks changed by heat and pressure) commonly have significant iron and it often crystalizes out into tiny dark colored specks that are heavier and more durable than other rock forming minerals like feldspar and mica. The iron rich mineral specs are what make up black sand. Rocks that dont have much iron - like limestone or dolomite - are only rarely hosts that give
  2. Effectively the only case where the public can be excluded from access is cases of permitted mining operations where the public could be in danger and in those cases fencing and signage are both approved by the BLM and required under MSHA.
  3. Agreed and some of those techniques work well or not so hot depending also on the size of the target. Edge on methods work well if the target is good sized, and can be almost required if the target is huge. They do not work well if the target is really small. Small targets may not sound off on edge until the are almost touching the edge of the coil. With a DD I typically step back and move forward rather than moving the coil backwards towards my feet but the net result is exactly the same. Fast target pinpointing and recovery is more of an advanced technique and exact methods depend on si
  4. I had posted in another thread about how many prospectors do not take the time to accurately pinpoint and therefore spend a lot of unnecessary time chasing their target, resulting in less gold found. I thought it might be better to have a clean thread specifically on the topic. Its important because taking an extra 30 seconds to pinpoint a target carefully can save 5 minutes or more of digging and chasing. Multiply 5 minutes per target (more or less) by 20 or more targets a day and it really adds up. Plus the less time you spend digging and chasing your targets, the more time you spend actua
  5. Our eyes are easily fooled! That is why its hard to guess the weight of nuggets. As you say on the video, it is like foil - big in 2 dimensions, but thin in the third dimension. I have a piece of gold from Northern Nevada that is a flat folded piece like that, but mine is about 1/10th the size - a bit over 3 grams. Just like that one, you'd expect it to weigh more based on how it looks. Even on pieces with good size in 3 dimensions, gold weight can be tough to guess. I have a spot in California which has produced a good number of 1/4 to 1/2 ounce nuggets in chunky pieces, but look like they
  6. Its not a super difficult topic, but I did do a video on pinpointing with your detector. Its not that difficult, but it's easy to get excited when you find a target and just start digging. See: https://youtu.be/0MZkTUBPneE
  7. Oneguy - as far as saving time digging targets, one of the biggest problems is that many people simply do not make much effort to accurately pinpoint the target location. They swing over it a couple times to make sure there is a target in the ground and then immediately start digging. Then they chase the target all around trying to find it and it seems like its here and then it seems like its over there. The hole gets bigger and bigger, time drags on and the prospector gets frustrated. Taking an extra 30 seconds to pinpoint a target carefully can save 5 minutes or more of digging and chasing.
  8. If it is sitting so that the sunlight touches it, its a sunbaker, whether you see it first or the detector sees it first. I've found underwater nuggets that were exposed to sunlight, and I'd also call them sunbakers, even though they were underwater.
  9. Discrimination for pulse detectors is a last ditch type of thing and I would advise against it. On my first trip to Alaska I watched as several multi-ounce nuggets that had been found in the days I was there tested on a Minelab PI and discriminated as junk. Only very loud targets, that you have carefully pinpointed their location can be safely discriminated even with a VLF. You are right that serpentine is a very difficult bedrock to work with a VLF - dang near impossible. Serpentine can at times even be difficult with a pulse detector. The frequency of a detector does change the sensitivity
  10. Detectors are tools, and in the same way you dont want a crescent wrench to tighten a Phillips head screw, if you are tightening a bolt you dont want a screwdriver. VLFs are better choices for hard rock mine dumps, no question about it. On the other hand if I am detecting highly mineralized ground with deep gold, I am going to want a PI or the GPZ. No matter the work, you want to be using the right tool for the job. Here is some Nevada hard rock gold I detected with a VLF...
  11. Can you get the book printed in Australia? You do have the best book out there hands down. As per my comment from a couple hours ago just above your post: I had a small run printed there but the cost of printing small runs and delivering it to JP makes the book almost as expensive there as it would be to ship my copies over there. I barely did better than to break even. I only am able to make a decent profit on the book here in the US by printing several thousand copies at a time. And before anyone suggests print on demand, no, it is not any cheaper, it is more expensive.
  12. I was doing some work in really hard to dig ground and deep gold. I was using the GPZ to see the deep targets and even with the standard coil you need to dig a big hole with the 7000. So I just dug a little starter hole to mark the spot. No paint left behind, no marker chips or flagging. Just the start of a hole dug to mark the spot. Afterwards, I'd go mack with the SDC and and dig it out - and with the smaller mono coil of the SDC, a much smaller hole needed to be dug. And I got some nuggets way too deep to see with the SDC by itself. I hate digging those GPZ craters , especially on deep targ
  13. I was actually asked that previously in this thread - this is my response from Oct. 2019 and really nothing has changed: There is no ebook version coming. I looked into it and for the reason that ebooks automatically resize the material no matter what device you are using, they work very poorly for books with loads of illustrations - like my book. I looked into it and it was nothing but roadblocks and reasons it would not work. Ebooks work great for novels and other books that are pretty much text only, but there are hundreds of illustrations in Fist Full of Gold. I remember looking i
  14. Well, this a very slow response but it is one. First, late in 2020, the book began to sell at a faster rate than it had since it was first published. So I did a quick update to include the GPZ 7000 and a few other housekeeping items and then went to have it re-printed in late August (at the last print the 5000 was the flagship Minelab). To my disappointment, I found the printer was greatly delayed in reprinting because of Covid 19, now taking 3 months to print as opposed to one month in the past. Because of the delay, my distributor ran out, Amazon ran out and I ran out too. Most dealers ha
  15. Hard to say, but I have seen all sorts of old trash dumped in old placer pits and other diggings. Old cars, washing machines, you name it. It might be related to something someone was thinking of doing for mining, but it also might just be old trash dumped at a placer pit.
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