Need your opinion please

[Fish1980]

When I first found this I assumed it was mica but since that time I put this ore in a high heat fire and boy did it change the look .I've also boiled some in sulfuric and put it in AP bath and well after that it still looks gold to me

 

[Yggdrasil]

When I first found this I assumed it was mica but since that time I put this ore in a high heat fire and boy did it change the look .I've also boiled some in sulfuric and put it in AP bath and well after that it still looks gold to me

If you want to find out, you need to crush it to a fine powder and pan it.
That will reveal if there are larger particles of Gold.
Or the best way, crush it finely and either send it for an assay or smelt it and cupel it.

 

[goldshark]

Looks like pyrite to me. Very cubic. May have fine particle size Au in pyrite. Probably won't be detected in a crush and pan test, fire assay will show it. Also, take a class on mineralogy. Coarse Au will not shatter into fine material. Hit it with a hammer inside a contained area. Crush through 80 mesh. look for flat grains of Au on screen, if you have a couple pounds, pan some, save the rest for an assay. They only need a couple of ounces.

 

[Fish1980]

Done and well looks like last grains to me but I'm still new to this

 

[Fish1980]

I was already in process of crushing/panning before I saw your message thanks for any help in advance .when I crush this and pan it I have alot of extremely fine partials in water and if I pour it off into a separate container it will settle quickly and looks to be copper mixed with fine gold so I'm going to boil in sulfuric acid to remove all copper and base and will post results before and after experiments

 

[goldshark]

Looks like you got some Au to me. Photos never do a mineral sample justice.

 

[goldshark]

Don't forget to weigh a dry sample before crushing, and your end amount of Au, dry. You can then begin to get a value of the ore per ton. Unless you don't care, because this is just a hobby for you. If you care, send your tails off for assay, so you can figure out how much you are not recovering.

 

[Fish1980]

Where can I get an assay done at a reasonable price and how much would it be??

 

[goldshark]

Most assayers are in the western US, cuz that's where most of the metal mines are. Google "assayers USA", and a bunch will come up. You can call for pricing and payment options. Cheapest Au/Ag fire assay should cost 35-50 $. I would ask for Au only, if you are only interested in that. Freight is extra, and they only need a couple assay tons, 80 grams should be plenty. They will also charge for grinding to 150 mesh, if needed.

 

[Fish1980]

Mt Baker mining and metals I've watched them for years on you tube shoot I can assay it myself if I had a cuppea furnace

 

[Fish1980]

I need a copper assay as well this ore is loaded

 

[goldshark]

It is a lot more complicated than it looks. You will need a furnace, fluxes ( and the knowledge to use the right ones), furnace tools, molds, crucibles, accurate scale, place to do it, cupeling furnace, cupels,PPE, and a little more studying. A couple thousand dollars, and you will be ready. Might be cheaper to send one off initially, just to see what the heads assay.

 

[SRM]

Might send an email to Haile in SC to see what umpire/check lab they use.