145 How Fast Does Micro Fine Gold Settle

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  • เผยแพร่เมื่อ 6 เม.ย. 2020
  • I ran a test to see just how fast you can get micro fine gold to the bottom of a gold pan. It was surprisingly fast. I also explain how I eliminated the serious cross contamination problems I had.

ความคิดเห็น • 63

  • @adriaannikken7519
    @adriaannikken7519 ปีที่แล้ว +2

    I love the super microfine education.

  • @firewaterforgeofarizona4304
    @firewaterforgeofarizona4304 3 ปีที่แล้ว

    Thank you for answering a question that has been on my mind for a while. Just subscribed

  • @ProspectorTripp
    @ProspectorTripp 4 ปีที่แล้ว

    Keith, Good work sir! Always enjoy your straight forward testing that is field ready!
    Thanks
    ✌️PT

  • @akdenizyoldas67
    @akdenizyoldas67 4 ปีที่แล้ว

    I appreciate your great works.

  • @juliesilva6760
    @juliesilva6760 2 ปีที่แล้ว

    Luv your channel Keith ❤️

  • @AEVMU
    @AEVMU 11 วันที่ผ่านมา

    One trick, before you stop stratifying, significantly reduce the side to side force and come to a stop very gradually. The gentler motions don't catch the smaller particles in turbulence while still letting them settle.

    • @hardrockuniversity7283
      @hardrockuniversity7283  11 วันที่ผ่านมา

      Interesting. I will try to remember to give it a go tomorrow.

  • @bandilla7317
    @bandilla7317 2 ปีที่แล้ว +1

    Thnks sir for the better idea how to catch super fine gold easily and the sharing better most information to do it have a nice day sir god bless u.

  • @bandilla7317
    @bandilla7317 2 ปีที่แล้ว +1

    nice Thnks for the information sir.

  • @DanielEngsvang
    @DanielEngsvang 10 หลายเดือนก่อน

    Great instruction!. I have just started to pan for gold here in my home land Sweden.
    I have just taken a couple of samples(42 Lbs/19 Kg in my backpack) from a construction site a kilometre from my home where they have dug up the earth all the way down to blue clay and sea bottom with a lot of red sand. The sand is mainly quartz and i just want to take a look at it out of curiosity.
    Cheers 🙂

    • @hardrockuniversity7283
      @hardrockuniversity7283  10 หลายเดือนก่อน

      Remember that larger gold will not act in the same way as micro fine gold. When testing a new material always use both types of reveal: my tapping method AND the swirl type reveal that works for the larger gold. It changes at about 50 mesh which id about the size of table salt.

  • @user-ru5be4iy9t
    @user-ru5be4iy9t หลายเดือนก่อน

    There is a Gold sol in a British museum that has not settled since the 18th Century. I used to make them as a hobby and found that the cleaner the water, the longer it takes for the Gold to settle. When the particles are very fine, electrostatic forces come into play and the Gold particles, having the same charge repel each other.

    • @hardrockuniversity7283
      @hardrockuniversity7283  หลายเดือนก่อน +2

      Once it gets small enough it won't settle for sure. A lot of gold in hard rock IS that small. Thus the hybrid system{ gravity separation for the (relatively speaking) big stuff and dissolution for the small stuff.

    • @user-ru5be4iy9t
      @user-ru5be4iy9t หลายเดือนก่อน

      @@hardrockuniversity7283
      In commecial production the fines from the Ball mill go thrugh a gravity separation process and only the fines go to the cyanide dissalution process. t's pointless to send large bits due to the time it would take to put them in solution.

    • @hardrockuniversity7283
      @hardrockuniversity7283  หลายเดือนก่อน

      @@user-ru5be4iy9t Correct. Unfortunately, end discharge ball mills also tend to be good gold traps.

    • @user-ru5be4iy9t
      @user-ru5be4iy9t หลายเดือนก่อน

      @@hardrockuniversity7283
      The Gold isn't going anywhere. It just needs to be cleaned-out periodically. The super in charge knows when. It's the down-time that makes management ansy.

    • @hardrockuniversity7283
      @hardrockuniversity7283  หลายเดือนก่อน

      Loren said the mine he used to work at used the gold in the ball mills an an emergency piggy bank. 🙂

  • @frankbyrd6726
    @frankbyrd6726 2 ปีที่แล้ว

    Thanks for additional info concerning ultrafine gold recovery ... Sometimes a guy forgets things ( if he ever knew them to start with )
    Ultrafine gold is what I get every day .
    I get gold here in Eastern Washington out of the Snake River that is said to have originated in Northwest Wyoming ... Crazy fine

  • @royjohnson465
    @royjohnson465 2 ปีที่แล้ว +1

    I was told that -300 mesh and smaller will 'not' come out of (water slurry) suspension in any type of sluice with riffles, in other words it can 'not' be caught in a sluicing system. But it 'can' be caught in a jig, centrifuge, or vibrating table system.

    • @hardrockuniversity7283
      @hardrockuniversity7283  2 ปีที่แล้ว +1

      That seems to match my experience. I can recover down to 500 mesh in an ocscillating Jig. 2000 mesh won't even settle in still water- that's what we are working on leaching now.

  • @richardrobertson1331
    @richardrobertson1331 7 หลายเดือนก่อน +1

    It seems every placer deposit has some gold dust that just doesn't want to settle out as quickly as the more easily seen small flakes. So, how does the small miner justify the time and effort needed to capture it? I remember reading that it takes 40,000 gold dust particles to add up to an ounce. That's a lot of labor-intensive panning. You can readily see why miners are commonly looking for options other than the toxic ones that are readily available such as mercury, fat flotation, expensive acid and cyanide. Keith, you have proven to be quite handy in constructing mining equipment in the past, so please build an "automatic" processor that deals with both the fine clay particles and these fine gold dust particles, then sell me one. Thanks for posting this common mining issue video.

    • @user-ru5be4iy9t
      @user-ru5be4iy9t หลายเดือนก่อน +1

      It makes a big difference when you have an ounce or more of Gold in suspension.

  • @el-diablostuff6038
    @el-diablostuff6038 2 ปีที่แล้ว

    I also found some that look like micro sand in grey colour, is it gold

  • @GrooberNedJardine
    @GrooberNedJardine 4 ปีที่แล้ว +1

    Was there much black sand in that sample Keith , i know the fine stuff settles pretty quick , but if you got a fair bit of black sand it takes a bit to get it right to the bottom , interesting experiment though .cheers .

    • @hardrockuniversity7283
      @hardrockuniversity7283  4 ปีที่แล้ว +1

      Very little heavies. Mostly tramp iron from the grinding. However, even a couple of percent heavies seems to make little difference. In solid heavies, the gold still seems to drop reasonably easily as ling as it's not flaky.

  • @justme-gj1wm
    @justme-gj1wm ปีที่แล้ว

    What would you say would be the ounces per ton if the amount of gold in the 3rd pan was from hard rock crush that was not concentrates, with every crush consistantly . Just the crushed Rick as is ? Ruffly your best gusse ?

    • @hardrockuniversity7283
      @hardrockuniversity7283  ปีที่แล้ว

      With a standard size sample, better than an ounce per ton. Probably 1.5 to 2 ounces per ton. If that was rock, it would be ore unless it was only an inch or two across.

  • @tadvanallen
    @tadvanallen 4 ปีที่แล้ว +2

    I can see how tough it is for ultra fines to drop, when there is so much going on in a pan! Would smaller con amounts in the pan (even though its more work) make it easier for ultras to sink quicker? (With less material to fight?)

    • @hardrockuniversity7283
      @hardrockuniversity7283  4 ปีที่แล้ว +2

      Less than 15 seconds seems fine to me. To answer the other question, the thinner the pulp, the faster the trip to the bottom.

  • @MiningMagnets
    @MiningMagnets 3 ปีที่แล้ว

    I wonder how saturation plays a roll. How would a bigger pan and more clear water effect the sample if there was more water to mix with the sludge.

    • @hardrockuniversity7283
      @hardrockuniversity7283  3 ปีที่แล้ว

      I am pretty confident it would be even faster. I was surprised at how fast it was in those conditions. Common sense would seem to indicate it would move quite slowly, but not so much.

    • @danhodgins4015
      @danhodgins4015 ปีที่แล้ว

      @@hardrockuniversity7283 - ever tried panning with some flocculant in the water instead of jet dry? I wonder if it would push sub 300-500 mesh gold to to the bottom, just like the other sediments.

    • @hardrockuniversity7283
      @hardrockuniversity7283  ปีที่แล้ว

      @@danhodgins4015 I have used flocculant at times to settle the slimes in a process, but never tested it against gold itself. Might work.

  • @shots-shots-shotseverybody2707
    @shots-shots-shotseverybody2707 4 วันที่ผ่านมา

    What about boiling out the silica and quartz with sodium hydroxide, letting it cool then panning out the gold?

    • @hardrockuniversity7283
      @hardrockuniversity7283  4 วันที่ผ่านมา +1

      Too expensive and too much hazardous waste for practicality. there are much cheaper and safer methods. It would probably work though.

    • @jimholland7622
      @jimholland7622 3 วันที่ผ่านมา

      Thank you. What would be a better plan of action in processing in your personal opinion. I'm learning from you

    • @hardrockuniversity7283
      @hardrockuniversity7283  2 วันที่ผ่านมา +1

      It is all ore dependent. First you would try a gravity separation is it is the easiest by far- IF IT WORKS. Then you would go to leaching. If you have sulfides you would almost certainly have to throw a roast in there between crushing and extraction.
      One always starts out with a serious sampling program and laboratory scale testing of the options BEFORE making any decisions or buying equipment.

    • @shots-shots-shotseverybody2707
      @shots-shots-shotseverybody2707 วันที่ผ่านมา

      @@hardrockuniversity7283 I have it as separated as it can generally get and semi concentrated, by the nature of this material it's a high concentration level. I wish I could post a video here for you if there's a way of doing it, let me know. I have three labs picked out for the assays which ones going to conduct two different test for me and I'm gonna compare which ones the most effective and cost effective for me when it's all said and done. I just after that don't know if I wanna go straight to refiner or bring a processor is a middleman and that's the purpose of that caustic soda question I mentioned if it's going to help me toward my end goal but if you have that process, you mentioned, please list it in terms of the lab in the other stuff you mentioned yes I got that pretty much dialed. In the fact I could probably bring this in now and I'll accept it the way it is with the smile on their face, but I wanna make them smile even further I want them to give me a better deal because I wanna make their life easier and I want to bring them enough material each week where they're happy as hell. I'm not a processor. It's kind of fun but I don't wanna get into it. I want to stay away from me wearing the refiner hat as well. I'm a rainmaker in mining, I find good gold, good buyers, good land and mineral resources, investors, and set up arrangements and turn around and do it over and over again, but this time I'm doing something a little bit different. It's hands-on only through the next step thus the purpose of my public question on one of these threads

  • @juliesilva6760
    @juliesilva6760 2 ปีที่แล้ว +1

    I don’t understand the term contamination ? It’s all from the same test cup so I don’t understand what ya mean ,hope this isn’t a silly question

    • @hardrockuniversity7283
      @hardrockuniversity7283  2 ปีที่แล้ว +3

      The problem is that when cleaning out the PAN after panning high grade cons, I can easily leave some gold behind that then shows up in the next test. If the cons are running 20 ounces per ton and I miss only 1% of the gold in the pan when I clean it, the next sample would look like .2 Oz/T even if it had nothing in it. That is why I started using different pans for cons versus ore.
      Not a silly question.

    • @juliesilva6760
      @juliesilva6760 2 ปีที่แล้ว +1

      @@hardrockuniversity7283 oh ok thank you so much for explaining this….

    • @hardrockuniversity7283
      @hardrockuniversity7283  2 ปีที่แล้ว +2

      @@juliesilva6760 You're welcome.

  • @coryh7209
    @coryh7209 3 หลายเดือนก่อน

    Does gold really settle that fast and you're not losing any?

    • @hardrockuniversity7283
      @hardrockuniversity7283  3 หลายเดือนก่อน

      That is exactly what happened here. Quick panning and then double panning the tailings will tell the tale for your ore. We have an ore up here where the gold is 80% passing 2300 mesh. Would not work for that.

  • @ataali4279
    @ataali4279 3 ปีที่แล้ว +1

    I think thier some super super fine gold will out with water

  • @thebodgingbigfoot4014
    @thebodgingbigfoot4014 4 ปีที่แล้ว

    AHHHHH!!!!!!! THATS MY AREAS STUFF!!!!! IT DRIVES ME NUTS PANNING IT... it I enjoy it. Kinda like pick your own torture