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How To Make Copper from Scratch: Secret technology of the Ancients - How To Smelt copper at home 

Chris Ralph, Professional Prospector
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Today I will show you a technology that forever changed the destiny of mankind. We will be making copper like the ancients and doing a little home smelting to get copper metal out of copper ore. Even from the earliest days, mankind appreciated the beauty of copper minerals and made those stones into some of his first jewelry and art. Among some of the pretty blue and green copper minerals, he also found this odd red metal substance that that was really useful and could be beaten into things like knives, axes and hammers. But there wasn’t much of it. In time he learned he could melt it and combine little pieces that were too small into a larger one. It is likely that in melting it, he discovered that he could turn those pretty blue and green rocks into that really useful red metal. When we made that discovery, mankind changed forever and we progressed from the Stone Age to the Copper age (and not long afterwards into the bronze age). Today we will repeat that same discovery and show how this very primitive technology works to turn pretty minerals into copper metal. Copper was the first metal smelted out from an ore and we will be doing some smelting at home with these rocks.
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...
The Prospecting and Mining Journal magazine can be found at:
www.icmj.com

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21 ноя 2020

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Комментарии : 180   
@oldminer5387
@oldminer5387 3 года назад
Great class Chris. I found it very interesting when you took the crushed copper ore and smelted it. A demonstration like that is worth a thousand words. Thank you.
@ChrisRalph
@ChrisRalph 3 года назад
Thanks 👍
@richardbethell2243
@richardbethell2243 3 года назад
Just amazing to see, looking forward to more Chris.
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed it. More to come!
@IBRAKEFORBEDROCK
@IBRAKEFORBEDROCK 3 года назад
I learned a little about Heap leaching, SX & EW during a mine tour in Casa Grande years ago....Awesome video Chris , You truly are a professional Prospector !
@ChrisRalph
@ChrisRalph 3 года назад
Very cool! They are doing one in AZ now without the mining or the heaps - they drill many holes and pump the dilute acid into the ground then remove the solution and extract the copper. It's in situ mining of the mineral without moving the rock. I did a small heap leach for gold with cyanide for a company I worked for many years ago.
@TheFlyingMiner1
@TheFlyingMiner1 3 года назад
Outstanding! Mike and I just stumbled on a vein of copper today! Will try your method in the vid. Thank you Ralph
@ChrisRalph
@ChrisRalph 3 года назад
Sounds good. Have fun!
@shipoffools2183
@shipoffools2183 3 года назад
Another great video, interesting and informative. Keep up the good work and thank you.
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed it
@pattaylor4407
@pattaylor4407 3 года назад
I really enjoyed learning about how our ancestors processed copper! Great video! Thank you!
@ChrisRalph
@ChrisRalph 3 года назад
Thanks! Glad you enjoyed it.
@apatterson8128
@apatterson8128 3 года назад
Chris, I would like to let you know that you have made me a better Earth Science teacher. Your videos answer a lot of questions that my students have. I have shown several of your videos so they can see what some minerals look like in nature. They think diamonds look like jewels in a rings when they are found in the rough. AWESOME CONTENT. I subscribed.
@ChrisRalph
@ChrisRalph 3 года назад
Wow, thanks! I will shortly come out with a prospecting for copper video with loads of copper mineral images, and a discussion of the geology of copper deposits (this will be the video after next).
@apatterson8128
@apatterson8128 3 года назад
@@ChrisRalph Can't wait!
@EthanBonardel
@EthanBonardel 3 года назад
Thanks a bunch Chris Ralph! Interesting to see how much copper you got out of the ore. I bet once they figured out about metals they were off to the races on all types :) Your videos are amongst my favorites and you have taught me a lot! You bring a lot of information to the table and do us amateurs a great service! I am ordering your book but man I wish it was hardback full color. I learned from you tho: color is the least informative quality in identification. Neways can't thank you enough!
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed the video. The problem with color and hard back is the cost which is way, way higher for small print runs like mine. In full color, hard back, my book would have been $150 instead of $30. Would you have bought my book if it were $150? I figured most would prefer the lower price. Many of the diagrams and other illustrations are black and white to begin with, so they would not have been in color even if it were printed with color.
@oddball8758
@oddball8758 3 года назад
A campfire left burning all winter can also leave metal on the bottom in Spring if it is lined with stones containing metal. Burning evergreens and Birch is hot on windy days and metal cannot escape it's reaction to heat.
@ChrisRalph
@ChrisRalph 3 года назад
With lead and copper it would work.
@oddball8758
@oddball8758 3 года назад
@@ChrisRalph I was surprised Pb was not discovered first. It would have been my guess.
@ChrisRalph
@ChrisRalph 3 года назад
Its the pretty nature of copper minerals. Lead minerals are more boring.
@DaleDuffy
@DaleDuffy 3 года назад
Very interesting, great video, thanks again, Chris
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed it! A similar video working with sulfides is coming next week.
@ProspectorTripp
@ProspectorTripp 3 года назад
Thanks Chris.. very rich ore.. impressive! Great video sir ✌️PT
@ChrisRalph
@ChrisRalph 3 года назад
Thanks! Glad you enjoyed it. It was fun to make.
@Mk-hq2gc
@Mk-hq2gc 2 года назад
I don't know how I didn't see this video for the past couple of years that I've been trying to look for videos on copper extraction process. That was awesome explanation and show by doing. Thanks for wonderful contents. Subscribed for more contents like this.
@ChrisRalph
@ChrisRalph 2 года назад
Glad you enjoyed it!
@HALIYALBETAGERIVLOG2024
@HALIYALBETAGERIVLOG2024 3 года назад
Very helpful information video Sir 🙏 thank you very much sir.❤️
@ChrisRalph
@ChrisRalph 3 года назад
Most welcome, a similar video working with sulfides is coming next week.
@amewarashi5770
@amewarashi5770 3 года назад
This was a really cool one. I especially appreciate that you did an actual smelting demonstration. I've been looking around the internet for weeks, about this exact subject. Except I was trying to learn about ancient silver identification and processing. Since it just looks like a grey or black rock in a world without metal detectors, looses heat so fast and oxidizes so readily. (not to sway you but it would be a pretty cool follow-up subject to compliment this video) ~Thanks~
@ChrisRalph
@ChrisRalph 3 года назад
In time I am planning videos on silver extraction by both smelting and leaching. Subscribe if you have not already and you will see these videos in a few months.
@amewarashi5770
@amewarashi5770 3 года назад
@@ChrisRalph I subscribed after binge watching the day I found your videos. They're thoroughly informative and well made. Also I have an interesting nonpublic mineral question I think you might be able to help me with, if I say please.
@ChrisRalph
@ChrisRalph 3 года назад
Ask Here and I will do my best. Otherwise, I get so many, many requests for personal help, advice, training, review, mineral ID, etc. - every day - I simply cannot get involved with all the requests. I have plenty of my own projects to work on.
@terryblack4385
@terryblack4385 3 года назад
Thanks for the great video, I enjoyed watching it. Looking forward to trying your method. Ill let yah know how it goes.
@ChrisRalph
@ChrisRalph 3 года назад
I'm glad you enjoyed the video.
@Smithsgold
@Smithsgold 3 года назад
Great learning video now I want to make some copper !!!!!!
@ChrisRalph
@ChrisRalph 3 года назад
Going to be making more shortly.
@Smithsgold
@Smithsgold 3 года назад
@@ChrisRalph good way to stay warm !!!!
@huntingeverythingwithmikem3458
@huntingeverythingwithmikem3458 3 года назад
Thanks for sharing I’m definitely going to give this a try. I come across chrysocolla when looking for gold. Definitely want to make my own copper bar.
@ChrisRalph
@ChrisRalph 3 года назад
Best of luck to you in your efforts!
@justalurkr
@justalurkr 2 года назад
Now I need to look up what the ancients used for a furnace! My curiosity is well and truly piqued. Thanks for sharing this.
@ChrisRalph
@ChrisRalph 2 года назад
Any time!
@blueleadgoldproductions133
@blueleadgoldproductions133 3 года назад
Excellent explanation of an interesting topic. Thanks for the lessons. Hope to see you at the 2021 North Yuba Nugget Hunt
@ChrisRalph
@ChrisRalph 3 года назад
Let me know the date as soon as you have it and I'll put it on my calendar.
@blueleadgoldproductions133
@blueleadgoldproductions133 3 года назад
@@ChrisRalph Will do. I’ll be checking with the guys. Probably the last weekend in July again. Aloha
@michellerusso7510
@michellerusso7510 3 года назад
The knowledge you have is amazing. I love learning about all this stuff. Thank you for sharing your knowledge Chris.
@ChrisRalph
@ChrisRalph 3 года назад
My pleasure! Glad you enjoyed it.
@szbyzan
@szbyzan 3 года назад
Thank you. I love copper.
@ChrisRalph
@ChrisRalph 3 года назад
Me too! Glad you enjoyed it.
@davidhansen4471
@davidhansen4471 3 года назад
that one gets a 10 star rating in my book most informing one yet .........very good thank you
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed it.
@michaelt.9372
@michaelt.9372 3 года назад
Such a cool video! I have a source for quite a bit of copper ore so this is pretty dang cool.
@ChrisRalph
@ChrisRalph 3 года назад
I'm glad you enjoyed the video.
@naheedafzal2421
@naheedafzal2421 2 года назад
I watched your lecture keenly, wondering the sincerity you have. An eye opening guide for those who want to alter their destiny by using the inferior deposits they have. May God bless you.
@ChrisRalph
@ChrisRalph 2 года назад
Thanks.
@triplekmafia4932
@triplekmafia4932 8 месяцев назад
I found so many radiator cores. Thank you for your help
@ChrisRalph
@ChrisRalph 8 месяцев назад
Glad I could help
@allansgoldmining
@allansgoldmining 3 года назад
Thanks for the copper lesson Chris ! It's certainly more abundant than gold. LOL ! I had a lease on a copper mine many years ago. It was all oxides in Dolomite and it leached like candy with a very dilute solution of sulfuric acid (PH=4). I designed a vat leach process by crushing ore to 1 inch. This reduced the carbonate reaction to the acid. The solution was pumped in to a miniature version of a Kennecott cementation cone, where the copper precipitated onto scrap iron. Precipitate was 76% copper. Was simple and cheap process. Unfortunately, at $.65 /lbs. copper, I couldn't get investors for the project. The ore and dump tails are still there. At today's price it might be worth it ! Makes me wonder..... Hummm ??
@ChrisRalph
@ChrisRalph 3 года назад
The long term outlook for copper is to rise higher in future years on increased demand and reduced supply from old mines producing lower and lower grades. The newer SWEX process is MUCH more efficient than the old cementation on scrap iron process.
@allansgoldmining
@allansgoldmining 3 года назад
I think you're right on future copper prices. Will definitely look more into SWEX process. Might be easier than searching for scrap iron. Have good Thanksgiving. 👍
@IslandHermit
@IslandHermit 3 месяца назад
Charcoal briquettes usually aren't pure charcoal but have quite a bit of sand and ash added to them. You should use chunk charcoal instead.
@ChrisRalph
@ChrisRalph 3 месяца назад
True there are additives, but even chunk charcoal has ash left over when burnt.
@secrettreasure1388
@secrettreasure1388 3 года назад
'''' THANKS ,,,,,,,,,,,,,,!
@ChrisRalph
@ChrisRalph 3 года назад
Glad you enjoyed it. More videos to come!
@JsStack
@JsStack Год назад
Great video. Very interesting and informative. I have a scrapping and melting channel. This looks like it would be fun to do and try. Thank you for sharing. Just subscribed.
@ChrisRalph
@ChrisRalph Год назад
Sounds great!
@S13402
@S13402 3 года назад
Hi Chris, thanks for what you provide, deep appreciation. Can copper in quartz ores be confused with gold? I keep finding fine things (in quantities) and not sure what they are, I am sure they are not pyrite as I tested them with a multimeter and they showed continuity .. could they be chalcopyrite?
@ChrisRalph
@ChrisRalph 3 года назад
Few ores have metallic copper, most are copper containing minerals. Hard to guess what minerals you might be seeing in your ore. I get so many, many requests for personal help, advice, training, review, mineral ID, etc. - every day - I simply cannot get involved with all the requests. I have plenty of my own projects to work on. Watch my videos on how to identify minerals for yourself. Start with - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MpkW58ZeQlc.html Best of luck to you.
@jakebarton5751
@jakebarton5751 6 месяцев назад
I just watched your video for the first time and it was fantastic. I have a lot of copper ore available to me in Montana and was looking for a simple way to smelt it and this seems to be it. A question I had from the video was you mentioned adding a flux to the final melting process. What does this flux consist of and where could I find it in the game? Thanks for this late commentary, it was superb
@ChrisRalph
@ChrisRalph 6 месяцев назад
I used a mix of borax and sodium bicarbonate (arm and hammer).
@TheUplate
@TheUplate 2 года назад
Thank you for the information, fellow human. I too, like red metal. It's nice to look at with my human eyes and useful for making human tools. My overseer will surely appreciate my findings when I return to my -space- sea ship
@ChrisRalph
@ChrisRalph 2 года назад
Keep smoking them if you have them.
@TheUplate
@TheUplate 2 года назад
@@ChrisRalph Sadly not, I moved to Japan and that (you meant weed because of my odd comment?) Gets you locked up here. I'm about to try wilderness survival though and (jokes aside) got some great info from your video. Maybe I'll be crafting some copper tools this time next month. Thanks for a cool vido. I'd love to know good geological features to look for while hunting for ore, but there's no videos on how to maximize search efficiency. I assume rock sldes and river banks wold be a good bet to avoid wasting energy on digging
@caneycreekwoodcarver
@caneycreekwoodcarver 3 года назад
Thank you for the info I always wondered how they separated the ore to pure clean copper.im lmao assuming that other metals are done with the same technology but tweaked to get the meatels they are wanting. Very informative.
@ChrisRalph
@ChrisRalph 3 года назад
Some are similar but tweaked, some are wildly different. Glad you enjoyed it.
@bonbonpony
@bonbonpony 2 года назад
Interestingly, I see that this process is very similar to calcination of limestone (which is also a carbonate, but of calcium instead of copper) into quicklime (which is calcium oxide).
@bigmoney3405
@bigmoney3405 3 года назад
Thank You Chris, you are inspiring! Is Amazon the only vendor for your book?
@ChrisRalph
@ChrisRalph 3 года назад
There are other people who sell it, but they are out of stock too. The book will again be available on Amazon soon - sign up on the page for the book and they will email you when the new books are in. For now, I am totally out of stock, my distributor is out of stock, Amazon is out of stock - everyone is out of stock. The book is being reprinted and the last step of printing is happened a couple days ago. In the past it has taken about a month to get it reprinted, but with the covid thing it has taken 10 weeks to print the new copies and it will be another week before they are delivered from the printer who is in Minnesota. Sorry for the delay, I did not intend for the stock on hand to reach zero, but covid has made a mess of many things.
@exploringnorthernontario9627
@exploringnorthernontario9627 3 года назад
I reduced chalcopyrite in a pit before and it was slow and messy. Think I will try in the crucible next time. Thanks!
@ChrisRalph
@ChrisRalph 3 года назад
Plus it can get lost in the ash.
@danielvisionn6095
@danielvisionn6095 Год назад
How hot above copper melting point do I need my furnace to go, to smelt from ore how you did? Thanks
@ChrisRalph
@ChrisRalph Год назад
Roughly 200 C above the melting point should do it.
@raduserpu9964
@raduserpu9964 3 года назад
Love your video. I wonder what temperature do you need to reach in order to smelt that mixture?
@ChrisRalph
@ChrisRalph 3 года назад
About 1100 degrees C.
@raduserpu9964
@raduserpu9964 3 года назад
@@ChrisRalph Thank you very much for the info
@aplusmain.navanava1338
@aplusmain.navanava1338 3 года назад
Thanks a lot bro!! what was the purity of your coal processed copper?
@ChrisRalph
@ChrisRalph 3 года назад
I would guess around 95% or so.
@paulbegley1464
@paulbegley1464 3 года назад
It's always a good thing knowing that we can pull ourselves out of the next stone age. Same goes for cooking without a stove or oven of worse fast food restaurant. LOL. By the way do you do much prospecting derring the winter but away from the snow. I would imagine that you would do more desert prospecting if you do.
@ChrisRalph
@ChrisRalph 3 года назад
The high desert can be cold and windy and it doesn't take much snow or ice to make roads treacherous. I do the bulk of my prospecting in the warmer months, some but less in the cooler months and only a little in December-January.
@zaheerali3281
@zaheerali3281 Год назад
Sir at what temperature Copper ore decompose? Sir is it better to calcine malachite before reduction?
@ChrisRalph
@ChrisRalph Год назад
depends on what minerals in the ore.
@robertostman2075
@robertostman2075 3 года назад
hey there, I have been looking at a ton of videos related to gold and other metals, is there a way to work for a prospector like yourself as a miner, panner, etc... I would like to try
@ChrisRalph
@ChrisRalph 3 года назад
Not that I know of. I get so many, many requests for personal help, advice, training, review, mineral ID, etc. - every day - I simply cannot get involved with all the requests. I have plenty of my own projects to work on. I do my videos, I wrote a book, I write for a magazine. That's the best I can offer. Best of luck to you.
@robertostman2075
@robertostman2075 3 года назад
@@ChrisRalph well you certainly do not seem to have much time left after all of that, could you put me in contact with some one who could want?
@ChrisRalph
@ChrisRalph 3 года назад
As I said in my first response, not that I know of - I dont know of anyone.
@robertostman2075
@robertostman2075 3 года назад
@@ChrisRalph ok thanks any way, by the way if you like space related stuff a few years back I made 3 videos about a way that could be used to travel to other stars check it out, as it could very well be what eventually gets done.
@williamwoodington4304
@williamwoodington4304 3 года назад
Great video presentation. What did you use for flux and what did the ancients use for flux?
@ChrisRalph
@ChrisRalph 3 года назад
I used a mix of borax and sodium bicarbonate (arm and hammer). The bicarbonate decomposes to carbonate when heated. A mix of borax and sodium carbonate is a very standard flux. I dont know what the ancients used - maybe dried sea salt?
@williamwoodington4304
@williamwoodington4304 3 года назад
@@ChrisRalph Thank you!!
@metallicorecunkur8680
@metallicorecunkur8680 Год назад
hi chris malachite there is copper ore can i get a successful result if i apply the same technique
@ChrisRalph
@ChrisRalph Год назад
You should be able to get the same result if you follow all the same procedures.
@bonbonpony
@bonbonpony 2 года назад
Hmm so for the modern way we need sulfuric acid, which I presume comes from some sulfide depisits, or native sulfur, right? So how can we find sulfur deposits in nature in order to be able to make the sulfuric acid?
@ChrisRalph
@ChrisRalph 2 года назад
Much copper ore is chalcopyrite, a copper iron sulfide. Processing chalcopyrite generates sulfuric acid. The oxidized ore use sulfuric acid to leach the copper in that process, so it balances out.
@UtahGold
@UtahGold 3 года назад
What flux did you use? Does it slag off the lead?
@ChrisRalph
@ChrisRalph 3 года назад
I used a mix of borax and sodium carbonate. There was no lead in the sample.
@arindamghosh142
@arindamghosh142 2 года назад
How to extract copper from Chalcopyrite ??? Is it by same methods as your video??
@ChrisRalph
@ChrisRalph 2 года назад
Yes.
@rahulk5113
@rahulk5113 3 года назад
Do you think copper can be a huge matket as we can see the new age battery have copper plays vimp role.
@ChrisRalph
@ChrisRalph 3 года назад
Copper is rocketing up to record high prices.......
@ataali4279
@ataali4279 2 года назад
Hello sir , i did exactly like you did , and the result is copper but its breakable , so what is the reason ?
@ChrisRalph
@ChrisRalph 2 года назад
I dont know what you did different - it must be something.
@ataali4279
@ataali4279 2 года назад
@@ChrisRalph maybe its need more temperature ? I did it on 1300 degree , is it enough ?
@ataali4279
@ataali4279 2 года назад
Mr larph , i should melting ore copper with coal first and then i melting again with flux ? Two time melting it ? I look for all video on RU-vid , you the only one channel make its super
@ChrisRalph
@ChrisRalph 2 года назад
It all depends on what kind of copper ore you are talking about.
@ataali4279
@ataali4279 2 года назад
@@ChrisRalph its chrysocolla ، so it same way melting on vid ?
@ataali4279
@ataali4279 2 года назад
I have one tonne of ore copper , so if i want melting it , i need at least 400 kilo of flux and its coast , so that's meaning i not earn any money , can i melting it without using flux ?
@ChrisRalph
@ChrisRalph 2 года назад
You probably cannot make money on one ton of copper ore.
@ataali4279
@ataali4279 2 года назад
@@ChrisRalph i have big mountain have ore copper maybe 2k tonne , i look for cheap flux
@mikeeureka2171
@mikeeureka2171 3 года назад
In pottery we call that a Reduction Firing. Potters use reduction firing by using more fuel and less air . The reduction firing is how we get the red coppers in our glazes from Copper containing glaze
@ChrisRalph
@ChrisRalph 3 года назад
Yes. Very similar.
@oussamalasfer4860
@oussamalasfer4860 3 года назад
i sow guy called mbmmllc he basically did the same as you did but with gold he just miltingthe sand has gold in it i find it really interesting way to get the gold out the sand
@ChrisRalph
@ChrisRalph 3 года назад
I know the guy and I have been to his shop in Washington, USA.
@diegoperezsommariva2509
@diegoperezsommariva2509 3 года назад
What is that wich you call flux, and what kind did the ancients use? grat video man.
@ChrisRalph
@ChrisRalph 3 года назад
I used a mixture of borax and sodium carbonate (soda ash).
@diegoperezsommariva2509
@diegoperezsommariva2509 3 года назад
@@ChrisRalph is soda ash obtainable from an organic source?
@ChrisRalph
@ChrisRalph 3 года назад
Not that I know of.
@ataali4279
@ataali4279 2 года назад
How to to extract copper from chrysocolla ? Is it by same methods in this video ??
@ChrisRalph
@ChrisRalph 2 года назад
yes, but much Chrysocolla has only a little copper in it.
@ataali4279
@ataali4279 2 года назад
@@ChrisRalph sorry i have no good experience , i think its malachite , its whity green , ia it good ?
@ChrisRalph
@ChrisRalph 2 года назад
If you are unsure of what it is, then I am also unsure.
@ataali4279
@ataali4279 2 года назад
@@ChrisRalph im sure its malachite 👍
@mikeeureka2171
@mikeeureka2171 3 года назад
I have seen those piles up in Butt Montana
@ChrisRalph
@ChrisRalph 3 года назад
Lots of copper came from Butte.
@countingwithjerold
@countingwithjerold 3 года назад
what are your thoughts on copper pipes?
@ChrisRalph
@ChrisRalph 3 года назад
Copper pipes exist, but I have no idea what you are asking about.
@oddball8758
@oddball8758 3 года назад
The danger in Copper pipes is in the Lead solder. Copper does not react enough with water to harm you. An old penny should give you an idea of how little Copper reacts to water and air.
@forbesmagadu8789
@forbesmagadu8789 2 года назад
Hi Chris I'm Forbes from Zimbabwe wow great lecture really loved it we have plenty copper deposits down here in Zimbabwe and I wanted to extract gold from the copper ore by using vat leaching with cynide but it been very difficult, I read an atticle on ammonia cyanide leaching and I would like to know more about that.
@searchtv5878
@searchtv5878 Год назад
Pls tell me the cutoff of coper ore
@ChrisRalph
@ChrisRalph Год назад
It is not a simple question. It depends on the type of ore, how big the ore body is, where the ore is located, and also grade - it is not just grade alone.
@searchtv5878
@searchtv5878 Год назад
At least tell me the copper ore cutoff with other parameters to be cosiderered. Because there is copper ore in my country. If you don't tell me this I can't benefit fron your wonderful lecture.
@ChrisRalph
@ChrisRalph Год назад
Something between 0.5 percent and 2 percent. The country makes a big difference - some have very little infrastructure, some have a lot. More toward 0.5 percent in places like the US, something more towards 2 percent in developing nations sometimes higher than 2 percent in developing nations with rebellions and civil hostilities. If the ore body is too small, it doesn't matter the percent - if its too small it will not be economic no matter the percentage. The differences depends on the type of ore, how big the ore body is, where the ore is located. Those make a big differences. Mining companies spend several hundred thousand dollars US in studies to determine the exact number.
@searchtv5878
@searchtv5878 Год назад
​@@ChrisRalph Dear sir, thank you so much for your satisfactory answer. If I have more qyestion I will contact you.
@skeeterrhea7234
@skeeterrhea7234 3 года назад
What do you know about gold in sandstone in Colorado
@ChrisRalph
@ChrisRalph 3 года назад
I know nothing about it. Gold does not often occur in sandstone.
@skeeterrhea7234
@skeeterrhea7234 3 года назад
@@ChrisRalph I wish I could send you a picture of this piece I have. Muriatic acid ate the sandstone but did not eat the flakes of what I believe maybe gold
@ChrisRalph
@ChrisRalph 3 года назад
I'm glad you enjoy the videos, but unfortunately, I get so many, many requests for personal help, advice, training, review, mineral ID, etc. - every day - I simply cannot get involved with all the requests. I have plenty of my own projects to work on. Watch my videos on how to identify minerals for yourself. Start with - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MpkW58ZeQlc.html Best of luck to you
@skeeterrhea7234
@skeeterrhea7234 3 года назад
@@ChrisRalph personal help would be point me towards non precious metal, I'm a simple hobo that likes simple rocks. Thankful for the blessings of the precious metals when they're laid in front of me. Part of appreciating the simple things this land gives to us. As you are a prospector I know you enjoy the metals more than I. Respecting your love and knowledge I share my lil finds with those like you. Learning what the land gives . Thank you for this and all the videos.
@oussamalasfer4860
@oussamalasfer4860 3 года назад
lol 45% in return imagine if you find a gold mineral has the same amount !!
@ChrisRalph
@ChrisRalph 3 года назад
Gold minerals with 45% or more gold do exist, but they are rare (tellurides).
@AnasShaikh-pi7jy
@AnasShaikh-pi7jy Год назад
One day
@ChrisRalph
@ChrisRalph Год назад
Ok.
@zaheerali3281
@zaheerali3281 Год назад
Sir after reduction, how to separate coke from metal?
@ChrisRalph
@ChrisRalph Год назад
metal sinks, coke floats.
@zaheerali3281
@zaheerali3281 Год назад
@@ChrisRalph sir i am using graphite powder which also sinks with metal.
@karimrazak3798
@karimrazak3798 2 года назад
In your opinion, this piece of copper has a percentage of gold
@ChrisRalph
@ChrisRalph 2 года назад
It is mostly copper, very little gold, only traces.
@mikeeureka2171
@mikeeureka2171 3 года назад
I read that copper wiring in the US is required to be at least .994 percent copper
@ChrisRalph
@ChrisRalph 3 года назад
It has to be very pure.
@k-c
@k-c Год назад
We always tend to discount how early man was stupid and the inventions were probably by accident which may not be wrong but we also know that they could analyse their environment in depth in order for them to be able to adapt and survive and maybe those inventions were not by accident but through practical and logical analysis.
@ChrisRalph
@ChrisRalph Год назад
We always discount the generations that came before us.
@AnasShaikh-pi7jy
@AnasShaikh-pi7jy Год назад
One day copper bijnes men🎉
@ChrisRalph
@ChrisRalph Год назад
One day.
@AnasShaikh-pi7jy
@AnasShaikh-pi7jy Год назад
@@ChrisRalph sar copper ore Price
@AnasShaikh-pi7jy
@AnasShaikh-pi7jy Год назад
@@ChrisRalph my bijnes Screp metal
@retardedphilosopher1271
@retardedphilosopher1271 6 месяцев назад
show this to Ea-nasir
@ChrisRalph
@ChrisRalph 6 месяцев назад
You show it to them.
@retardedphilosopher1271
@retardedphilosopher1271 6 месяцев назад
@@ChrisRalph Ea-Nasir he makes bad copper
@riddick7991
@riddick7991 3 года назад
I found a copper pendant that was made primatively in a corn field while I was working in the field.it was an eye opener.it was at least made by native Americans late 1700's.my ex threw it out.smh.
@ChrisRalph
@ChrisRalph 3 года назад
Probably thought it was jewelry from another woman!
@riddick7991
@riddick7991 3 года назад
@@ChrisRalph lol.it was beaten like gold nugget with waves in it.it had a stem and not a loop.to tie rope around it.thats how I knew it was native American.it was extremely old.
@edwinlipton
@edwinlipton 3 года назад
How come this guy with so much useful knowlege talks like he's intertaining a 2nd grade classroom full of sleepy eyed kids?
@ChrisRalph
@ChrisRalph 3 года назад
You see it that way because you are overly sensitive and take far too many things personally that should not be taken that way. That is me speaking in a plain way to an adult, but guess what? you wont like that either.
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