How to assay ores for free gold - at home using easy methods and simple math

Тәжірибелік нұсқаулар және стиль

How can you determine the free gold content of ores for yourself? Commercial assays are expensive, this video shows simple methods to calculate the free, easily recovered gold in potential ores. Before you do a lot of work or make a big investment its important to know the grade of your ore. This video explains the techniques you need to use to find the answers you need.
For those who want to learn more about prospecting and finding gold check out my book, Fists full of Gold. It’s an encyclopedia of everything on the topic of prospecting. It’s available on Amazon. You can find it at (affiliate):
www.amazon.com/gp/product/098...
For even more information on prospecting, minerals, gems and other related information you can also check out my website at:
nevada-outback-gems.com/prospe...

Пікірлер: 110

  • @JBVance-jq7gm
    @JBVance-jq7gm5 ай бұрын

    Love it when you share more of your knowledge and experience. Expert level!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Thre is certainly more content to come! Glad you enjoyed it!

  • @jeffreywhitmoyer860
    @jeffreywhitmoyer8605 ай бұрын

    The good news for Jason is that his mine is pretty rich, at least in selected areas. It makes up for a lot of the work, but may not pay for back surgery down the road. Enjoyed the video and the info you shared.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Some parts are rich, but most is not that rich to pay for handling 10 times then hauling to town to crush and process.

  • @nikkiloves78

    @nikkiloves78

    5 ай бұрын

    Chris not even saying "surgery" is so funny to me! 😂🤣"pay for surgery" 🤣😂

  • @johnbowman476
    @johnbowman4765 ай бұрын

    I finally got off my a$$ and bought your book for my xmas gift. Prob should have been my first investment in this hobby. Based in SoCal and I can attest that it is difficult to find gold. Yet to find gold with my detector but at least getting good at finding #8 lead shot and a lot of cool mineralized rocks. This video is going into my library, thanks!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    I always got some gold in the Randsburg area when I lived down there. Best of luck to you in your efforts.

  • @OGRocker1
    @OGRocker15 ай бұрын

    Thanks Chris, Merry Christmas to you and yours. 🎄 heavy pans to Ya and a prosperous New Year ⛏⚒⛏🍻Cheers

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Same to you! A very Merry Christmas to you are yours.

  • @Siskiyous6
    @Siskiyous65 ай бұрын

    Jason has been showing how they are identifying the part of his mine that produces the higher grade, the hanging wall, in addition to focusing on that material, he is working on clearing a shorter adit, and he sells samples of ore online, all ways to increase efficiency and get more for the material. A mine requires development. Yes, he is working hard for what he is getting right now, but he is playing a longer game.Remember also, one part of the mine was reported in the old days to produce several ounces per ton.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    I am not criticizing Jason, just noting that handling something 10 times means you need to do a lot of extra work.

  • @joshuamoore24_7
    @joshuamoore24_75 ай бұрын

    I need to do these steps with the ore specimens I have. Thanks for the video.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Yes, you should. Its a good exercise to test your ores and then you will know what is good and what is not so good.

  • @curly__3
    @curly__35 ай бұрын

    Awesome! Thank you for these vids!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Glad you like them!

  • @TheRedWingMine-pm3lz
    @TheRedWingMine-pm3lz5 ай бұрын

    I've been told I need to assay my ore, but what matters to me on a small scale is what I can recover, and I do it exactly like you showed, weigh my sample and weigh the gold that I recover. Thanks for validating my thinking process.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    You are right. what matters is what you can recover.

  • @user-zu5cw9to5m
    @user-zu5cw9to5m5 ай бұрын

    Great video Chris as always thanks

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Glad you enjoyed it

  • @bretrath6073
    @bretrath60735 ай бұрын

    Thank you for your effort!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    My pleasure! Glad you liked the video.

  • @johnramirez5032
    @johnramirez50325 ай бұрын

    Great video! I've seen it before i think. Still it is always good to review procedures. Like sampling a large amount.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    THe same content has been covered by me and others, but this is a new video. Thanks for watching!

  • @mountainrescue777
    @mountainrescue7775 ай бұрын

    Good stuff, very understandable 👍

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Glad it was helpful!

  • @toddeftsadams5909
    @toddeftsadams59095 ай бұрын

    Great video Chris. Thank you. The Florence mine in the Snowy Range Mountains in south Wyoming had from 6 to 7oz per tun in a milanoitis quartz diarite seam.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    sounds like a good grade of ore.

  • @davevanderwall7644
    @davevanderwall76444 ай бұрын

    And yet another great video chris. One of your commenters hit the nail on the head its " what you can get." Me ? I just want it all. Lol to me the most important thing is to have fun. If you cant have fun and learn doing this hobby no amount of gold is going to be worth the work you put in.

  • @ChrisRalph

    @ChrisRalph

    4 ай бұрын

    Well said! Thanks for the kind words.

  • @littlenormy
    @littlenormy5 ай бұрын

    Good video. Thanks 1/2 oz good plan. lots of hard work.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    You bet, hard rock mining is tough work.

  • @anthonyrstrawbridge
    @anthonyrstrawbridge5 ай бұрын

    All that hlutters..... What followed the gold? Beyond purity and other minerals what value can be added to the extraction site, is their potential? Probably the most important consideration is if the pursuit is good for health. Bless your heart Chris ❤

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Good exercise and getting outdoors are always great things to be involved it.

  • @shanelocke237
    @shanelocke2375 ай бұрын

    "ONYA CHRIS" Another GREAT UPLOAD 👍 FULL OF GREAT CONTENT FOR US ALL.45°CELCIUS HERE IN AUSTRALIA 🇦🇺 IN YOUR FOREFATHERS GOLDEN TRIANGLE.WAY TOO HOT TO EVEN VENTURE TO THE LOCAL STORE😢

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    About 0 degrees C here in the mountains of North America. Too cold to go out!

  • @shanelocke237

    @shanelocke237

    5 ай бұрын

    @@ChrisRalph from one extreme to another extreme cheers Chris 🍻

  • @terrybush5678
    @terrybush56785 ай бұрын

    Great video Chris. This subject is one that I've wanted to explore further for several years. On another note I'm planning a trip to Australia in March and was wondering if you could recommend a prospecting guide service that you may have used when you were there. We'll be in NSW, Victoria and South Australia so hopefully you're experience over there was in one of those states. Thanks. TJ

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    I went to W.A. I have not been to the states you are going to, so I have no suggestions.

  • @terrybush5678

    @terrybush5678

    5 ай бұрын

    Thanks just the same Chris. I'll update you on the trip once I'm back if I have any success.

  • @danielflinn3571
    @danielflinn35715 ай бұрын

    Thanks from Australia

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    You're welcome, mate.

  • @johnramirez5032
    @johnramirez50325 ай бұрын

    Its a whole lot of work no matter how you slice it. You have the paitience of a saint ! Looking for that strike of a life time could take a lifetime ! Or could i say it will? Thank you for telling it like it is. The more you put into samplings and the more you know the better your chances. Most people are too busy making a living to devote all the time and effort needed. If one enjoys the hunt its worth it. The gold will just be the icing on the cake.! Well at least thats the way i see it.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Thanks for the kind words.

  • @RKranch
    @RKranch5 ай бұрын

    Another great informative video, I have a nice crystal with a lot of visible gold, I think it’s more valuable in the mineral . I know one of your videos said that. When is that the case ?

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    When the gold in the specimen is crystalline.

  • @RKranch

    @RKranch

    5 ай бұрын

    Excellent, I’ve gotten great results and , I bought your book too , only 1 left on Amazon currently. Thank you

  • @user-li1yw4pg9y
    @user-li1yw4pg9y2 ай бұрын

    Well-done

  • @ChrisRalph

    @ChrisRalph

    2 ай бұрын

    Thanks.

  • @user-hy3uy9sc7o
    @user-hy3uy9sc7o5 ай бұрын

    Thank you sir

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    You are Welcome - glad you enjoyed it.

  • @GoldPanDan
    @GoldPanDan5 ай бұрын

    Nicely done Chris! Did you test your tailings off the gold cube? Also check out the "primary" crusher I made in my only hard rock video, might be an idea for you so you're not having rock chips flying everywhere.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Tested the tailings and they were clean.

  • @GoldPanDan

    @GoldPanDan

    5 ай бұрын

    @@ChrisRalph nice. I’ve been curious how well the cube would do on the ultra fines. Not nice that there was not more gold to be had..

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    The old timers didn't leave good gold behind very often.

  • @beepseatsfindingfoodtreasu8756
    @beepseatsfindingfoodtreasu87565 ай бұрын

    I build rock crushing equipment for mining. Ive been working on my own portable mill. Its nowhere near the size of Iroc mills but it will fit in a my truck bed and usable for assay work. Good luck with that ore you found. Wouldn't it be nice to know where it came from. They might have left piles of high grade behind.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    I know where they all came from, but I am not going to invite others to come and take what they can find. Some are from claims that belong to friends who invited me to visit and take samples.

  • @beepseatsfindingfoodtreasu8756

    @beepseatsfindingfoodtreasu8756

    5 ай бұрын

    @@ChrisRalph well that's the miners creed. Don't tell anyone. I thought that some of the ore was brought to a milling site from other mines. A friend of mine had found some nice samples at mill site. He tried to locate their source and through mineral testing, found that they weren't from the area of the mill. So somewhere there's a mine that had some decent quality. Where, that's yet to be discovered. At least we have modern technology readily available. But boots on the ground are still the first step in finding a claim.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Yes, some was picked up at an old custom mill site, but I have other information and so I know where it came from and the area is under claim.

  • @jayalderman5801
    @jayalderman58015 ай бұрын

    It's getting hard to find lands that are open to mineral entry or land that isn't claimed up by a company. Thank you for the great content.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    That depends a lot on where you live. In many places yes, but some places are snot so much claimed up. For new guys I always recommend joining a club in your area. This will give you access to the club's lands.

  • @mikesherman8590
    @mikesherman85905 ай бұрын

    Crazy old man hahaha mike 64 in Buckeye az u r a great teacher mister

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    I'm glad you liked the video.

  • @nikkiloves78
    @nikkiloves785 ай бұрын

    With the end result of gold dust... could it have been larger in size but through the process was broken or is it throughout the rock in small pieces like that?

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Gold can break down, yes, but a lot of times it is just smashed up. Its very soft and malleable so larger gold in my chain mill often gets rolled up into little balls.

  • @nikkiloves78

    @nikkiloves78

    5 ай бұрын

    @@ChrisRalph ummm, interesting! Thinking of gold like chewing gum🤣

  • @user-kz7lg7gx6b
    @user-kz7lg7gx6b2 ай бұрын

    I know a spot to collect rocks that look like yours. I've been trying to figure out how to process these rocks at home. I wasn't sure if i was doing it right because how high my numbers were for the small rocks, but i think i did. If you have any tips that you think would be helpful to me, that would be appreciated. Idk anyone who knows that stuff who could lmk if im doing it right. So that part idk. Thanks

  • @ChrisRalph

    @ChrisRalph

    2 ай бұрын

    Best of luck to you in your efforts. Maybe join a prospecting club if there is one near you.

  • @John-ir2zf
    @John-ir2zf5 ай бұрын

    Is it prudent for us smaller scale people to "roast" hard rock quartz to soften it a bit so its easier to crush to small size ? I dont have a jaw crusher or hammermill, and the "smaller pipe with cap inside of a larger pipe" works well enough for small samples, but i have broken caps before because the quartz was very tough. I had read somewhere that roasting the quartz weakens it, is that something legitimate ? Or just a backyard myth ?

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Roasting does not do that much. To do anything significant, you would need to get the ore to a bright red heat (like in a furnace) and then instantly quench it in cold water, and then there are dangers with that process too as hot ore particles can go flying.

  • @John-ir2zf

    @John-ir2zf

    5 ай бұрын

    @@ChrisRalph thank you for the reply. I will skip thinking about that process and perhaps try to find a piece of 2" solid steel rod as opposed to pipe and cap to crush samples.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    The weight of the plunger going down makes a difference. Its still a slow process but it does work.

  • @zve482
    @zve4825 ай бұрын

    Something to say about touching the vein 12 times from mine to end of process. The simpler the better. The old timers hit the rich veins and abandoned the finger veins for a reason. There’s still rich veins out there. Remember that.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Very true 👍 I agree.

  • @williambasinger5859
    @williambasinger58595 ай бұрын

    On that single rock sample you could just let it sit in an acid bath and then measure the gold after the quartz has been dissolved.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    First, you know that quartz takes a very dangerous and powerful acid to dissolve it, right? The vapors given off are very toxic and dangerous as well. I say this because there are guys on KZread who dissolve calcite (a very different mineral from quartz) to get silver. Dissolving calcite is easy and not toxic. Dissolving 2 lbs of quartz would take several gallons of expensive HF, give off a dangerous cloud of gas during the process and cost a couple hundred dollars to accomplish. Crushing and panning was easy by comparison.

  • @williambasinger5859

    @williambasinger5859

    5 ай бұрын

    @@ChrisRalph yep but it would be the same process that these boys are using to get the gold off of electronic components. I don’t believe it would take gallons of acid if you crushed the rock I doubt it would take more than a couple of quarts. Yes you are right it is a toxic process.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    No, not the process guys are using on electronic components - you can do that with muratic (HCl) - the same acid used on the calcite. 2 lbs is two pounds - no matter the particle size, the same amount of acid would be necessary. It takes 4 molecules of HF to dissolve one molecule of quartz, and the saturation purity of the HF sold on the market is only 60%. One gallon is about $200.

  • @ZooKeeperJort
    @ZooKeeperJort5 сағат бұрын

    What's a good number for placer? I found a spot that's roughly 2 grams per ton, wondering if it's worth while. Thanks

  • @ChrisRalph

    @ChrisRalph

    4 сағат бұрын

    It depends on many factors beyond just assay number - How much is there? Is water available? can you do it legally? How easy is it to mine? Plus lots more questions.

  • @VNVLVMCSmokeyBear
    @VNVLVMCSmokeyBear5 ай бұрын

    Who makes the lil jaw crusher in this video, I'm trying to find one! Any help would be appreciated, new or used!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    That unit is very old - maybe 60 to 80 years old. It was made by Gardner Denver equipment, but I don't think they even make crushers anymore. Its a lab scale unit made for crushing rock samples. I got it used but I am sure there are companies that still make things like this but it will be expensive.

  • @searchtv5878
    @searchtv58784 ай бұрын

    Please tell me what is the cutoff of quartz vein gold ore?

  • @ChrisRalph

    @ChrisRalph

    4 ай бұрын

    Tell me what purpose - for you to mine it alone? For a small company to mine it? for a large company to mine mountains of it? the scale of operation makes a difference.

  • @rogerhanson3468
    @rogerhanson34685 ай бұрын

    Your sample that was mostly sulfides could be roasted and that would release the gold from the sulfur

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    roasting sulfides is a whole separate process. I did take the sulfides from that ore and put them in a tub I have that I am going to treat to extract the gold next year. I will do a video on it.

  • @rogerhanson3468

    @rogerhanson3468

    5 ай бұрын

    @@ChrisRalph thanks, I just acquired a piece of property and it has heavy sulfide material on it, love to see your process.

  • @anthonyonthegold
    @anthonyonthegold5 ай бұрын

    You ever see pyrite turn black? But this gives me a good idea. This creek i go to has lot of flour gold. But no nuggets. Its in the middle of the city bout 2 hour drive from the mountains. Give or take. But no one know where the gold os coming from... Is it the hills? Theres huge granite rocks all around with pyrite.. also lots of quartz, rose quartz quartz thats pure white and some quartz that has black in it. Ive tested random spots on the hills found nothing other than black sands and garnets. Im thinking its gotta be in the quartz or the granite. However i did find a decent flake that had a red rock attached to it. Like a sliver of red rock. And there are lots of red rocks down there. I just wanna find the nugets. Sure finding the pockets of flour is nice but i can do 5-10 buckets and get maybe 0.25 of a gram down there. Just wish i could highbank or dredge . But you know Washington State laws only hand pans and sluices

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Pyrite when it oxidizes turns a very dark brown - almost black. Otherwise hard to say where the gold is coming from, there are many possibilities.

  • @anthonyonthegold

    @anthonyonthegold

    5 ай бұрын

    @@ChrisRalph it got deposited there some how. Could have been deposited when the glacier's receded

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Most of the gold in the Midwest is from glacier gravel brought down from Canada.

  • @anthonyonthegold

    @anthonyonthegold

    5 ай бұрын

    @@ChrisRalph i know the vashon glacier carved the canyon that holds the creek. Interestingly tho other creeks close to it. That have also been carved out by the same glacier hold little to know gold lol. It's strange. I just wish I knew why it's all flour though

  • @mikeconnery4652

    @mikeconnery4652

    3 ай бұрын

    Great video

  • @user-li1yw4pg9y
    @user-li1yw4pg9y2 ай бұрын

    I send about four to five types of stones to you channel through U tube camera to know there names thanks.

  • @ChrisRalph

    @ChrisRalph

    2 ай бұрын

    No. I do not offer mineral identification service.

  • @nikkiloves78
    @nikkiloves785 ай бұрын

    Question: What is the Jetdry for? I have to say... I think the name of the game is "Slowly Feed"

  • @JediShilts

    @JediShilts

    5 ай бұрын

    It's used to break the water tension..so your gold don't float

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Jet dri keeps the small gold particles from floating.

  • @nikkiloves78

    @nikkiloves78

    5 ай бұрын

    @@JediShilts Thank You! I would've guessed it had to do with shine & luster... 🤣 Jetdry's marketing working even when it's used with rocks! 🪨

  • @nikkiloves78

    @nikkiloves78

    5 ай бұрын

    @@ChrisRalph Thank You Chris! Am I the only one who doesn't know this trick?

  • @ahmadqulaip4919
    @ahmadqulaip49195 ай бұрын

    Hello how are you if you don't mind i want to buy advice may you suggest kind 🙏

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Find someone in your country who can help you.

  • @Smithsgold
    @Smithsgold5 ай бұрын

    Hard rock mining is real work !!!!!!!!!!!

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    That's for sure! But it can be worth it. 👌

  • @user-ri5fy4qy3b
    @user-ri5fy4qy3b5 ай бұрын

    love you, Chris. I am bout your age. Time to lose weight. We want you around for a while. May God Bless You.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Wow, thank you, not sure to take it as a compliment or an insult.

  • @joshualee2308
    @joshualee23085 ай бұрын

    Crush to sand at home? Thats the rub.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Yes, it does take some equipment.

  • @greedygringoprospecting6941
    @greedygringoprospecting69415 ай бұрын

    got a small crusher. $35 off craigslist. bring the rocks to my truck. see what happens. have a good day.

  • @ChrisRalph

    @ChrisRalph

    5 ай бұрын

    Let me know how it works for you. I'm interested to hear.

  • @greedygringoprospecting6941

    @greedygringoprospecting6941

    5 ай бұрын

    @@ChrisRalphits a T handle one. mashes into a piece of pipe. but small. you can bring it with you to sample. like 10 lbs. let you know.

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