A new source>>>

[machiavelli976]

Soak a little piece in conc. NaOH. If it's going to be gold plated brass , the broken side will turn dark brown pretty soon.

 

[ricksusiefitz]

Hi everyone! This is my first post here at Gold Refining Forum.

An acid test will reveal if it is "yellow" brass. Brass stinks to high heaven when you do!

 

[Harold_V]

Hi everyone! This is my first post here at Gold Refining Forum.

An acid test will reveal if it is "yellow" brass. Brass stinks to high heaven when you do!

The fastest and easiest test is one using a drop of nitric acid. Karat gold does not respond if 14K or greater, but will slightly discolor (leaning towards brown) if the alloy is 10K. The dead giveaway is that brass instantly reacts with nitric, yielding a green solution and liberating the well known brown fumes of nitric acid. I tend to discourage anyone from smelling fumes. They are known to kill.

Welcome to the forum.

Harold

 

[Anonymous]

Here are the results of the mystery piece of metal.Drum roll please...........there is no gold contained in it.It is yellow brass.

 

[butcher]

OH-well, the knowlede you have gained is more valuble. it is worth gold.

 

[glondor]

Mic offered to do a proper test for me so I sent him a bit of the item. We know the results. Thanks for your help mic. te mystery is solved. Cheers!

 

[Anonymous]

You're welcome mike.Happy to help.

 

[newgold]

I have bought alluvial gold in the past . One of the tricks used by panners on unsuspecting new chum buyers was and is to fine grind brass padlocks and beef up their alluvial .
The perpetrators would always run for the door when a nitric acid test was used .

 

[glondor]

I have bought alluvial gold in the past . One of the tricks used by panners on unsuspecting new chum buyers was and is to fine grind brass padlocks and beef up their alluvial .
The perpetrators would always run for the door when a nitric acid test was used .

Seems there are a lot of dirty tricks out there. I have read a few good ones here in the last few days.Hollow stirring rods, adding copper to melts when the client is distracted. Maybe we could have a dirty tricks thread.

 

[greatgems]

anything on this yet results thanks

 

[glondor]

Yes the results were negative for gold.