Acid testing silver Question, how do you test your silver?

I picked up a silver looking handmade heart shaped box today.
The weight is right, slight magnetic.
Silver acid is brown, might have old acid...
Looks to be reacting with the metal and a light blue color on the ends of the circle.
Not marked anywhere I can see...

 

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Scratch test with 18k gold acid makes the silver dissolve.

The silver acid on the dot didn't look like it etched the piece at all.

 

18k acid right on the piece results in a blue/green?
Dark spot after cleaning off the acid, look like some copper showing up at the edges.
I'd say that it's plated.
After hitting it with some sand paper, it looks like a copper hue.
I'm still going with plated

 

Slide a Rare Earth magnet (neodymium) over it at an angle.
If it slides off quickly its base metal, if it slides off slowly then it has significant silver content.

Look up " testing silver coins with rare earth magnet" on YouTube for many examples.

 

Take it to a coin shop or pawn shop with a FRX machine?

 

I should probably take it to my local place and see how good they are with the XRF compared to my in-depth testing
My friend picked up two gold chains with MONET tags.
I found a few gold teeth and handed them over to him as I was looking around at other stuff.... maybe that wasn't the best decision of the day

Looks like about 15 grams in gold

 

My mom had a gold crown she had replaced. I sold it to a scrap dealer. I was amazed how much it was worth.

 

I figured at 10k Gold, the minimum $950 less the percentage of dealer fees.