The Pawnbrokers Guide to Testing Metals

[lazersteve]

It's 68-70% HNO3 (Nitric acid) and 36% HCl (hydrochloric acid).


Steve

 

[Lobby]

It's 68-70% HNO3 (Nitric acid) and 36% HCl (hydrochloric acid).


Steve

Thanks, Steve.


By the way, the info in the original posts is kept up to date by the author on his website. He's made a few changes to the article.

http://www.belleaircoins.com/how-to-test-for-precious-metals-2/

 

[jimdoc]

By the way, the info in the original posts is kept up to date by the author on his website. He's made a few changes to the article.

http://www.belleaircoins.com/how-to-test-for-precious-metals-2/

That link says site unavailable for me.

Jim

 

[Lobby]

By the way, the info in the original posts is kept up to date by the author on his website. He's made a few changes to the article.

http://www.belleaircoins.com/how-to-test-for-precious-metals-2/

That link says site unavailable for me.

Jim

Wow. It sure does. Same thing off my bookmarked favorites. Let's give it a few hours to see if his site comes back up. Else I'll delete my post. Or something.


Edit: works now. Site must have been down.

 

[goldsilverpro]

I've been looking around on this forum for testing info. This looks like what I need, but am still unsure. Is this for testing refined metals or raw materials or is it also for testing jewelry that has been already made (I.e. metal wedding bands or costume jewelry).

Mainly for jewelry. If you want to hang around, remove the link in your signature.

 

[Anonymous]

If you want to hang around, remove the link in your signature.

I am recomending that the account be removed.This person has not been back since the 7th,and has that same website posted in their profile..
However I would like to point out that they have a very nice ring on sale.It was $1675,and the new sale price is $1729...... :roll:

 

[goldsilverpro]

Gone with the wind!

 

[charles_dencute]

love you all guys...i am an unemployed person who just recently got job for an ameteur chemist here in the philippines...its nice to invest here with gold recovery...if your interested i can help you all the way...sorry this all i can help in this site,,

 

[Richard NL]

I remember an excellent article in the "Gold Bulletin", many years ago, that used a white touchstone. I think that it got heavily into PGMs also. I've tried to locate it, but have had no success.

This article ?:
http://www.scribd.com/doc/29496340/Touching-Precious-Metals-Testing

Miss Hoke did also mentioned about a white touchstone for PGMs in her book "testing precious metals"
http://www.scribd.com/doc/14426836/Testing-Precious-Metals-CM-Hoke1 Page 42 on Scribd.

Best regards Richard.

 

[goldsilverpro]

Here's the 1st link Richard gave, as a pdf. It uses a red stone and it may be the article I was thinking about. I may be mistaken about a white stone article.

 

[solar_plasma]

This thread would be stuff for the library - it leaves almost no questions unanswered

 

[FrugalRefiner]

Once again, your wish is my command. 8)

Dave

 

[meatheadmerlin]

I too was unable to get to this site
http://www.belleaircoins.com/how-to-test-for-precious-metals-2/

So, I checked archive.org's wayback machine.
The last saved copy of it is from January 18, 2013.
I figure it is worth posting that link here.
http://web.archive.org/web/20130118...ircoins.com/how-to-test-for-precious-metals-2

Edit: full text removed due to possible copyright issues