Gold fingers yield

[kjavanb123]

All,

I processed 160g of gold fingers removed from misc telecomm boards, using cyanide leaching and recovered 0.4g of purfied gold powder. Here are some photos,

Starting materials,


Materials after leaching completed within few seconds,


Here is the gold powder precipitated from cyanide leaching, gold recovered from fingers usually very fine form,


Refine gold powder,


Once again I would like to thank the forum members specially GoldSilverPro and Jaun whose their posts have been helping me learn about cyanide leach.

Regards
Kj

 

[Anonymous]

Hi Kevin looks like progress.

How did you make up your leech solution Kevin because you haven't got all the gold off those fingers mate. What temperature were you running at?

Also note you have some with a nickel flash and others without a nickel flash.

How did you precipitate and how did you check that your liquor was barren?

Jon

 

[glorycloud]

1.134 grams per pound seems kind of low. You may have more gold on the fingers
or in your solution.

 

[richard2013]

Is 160G=.4g 2.5/kilo average already with how the finger was cut?