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Trouble Testing Suspected Silver Candlesticks. Acid Test Question.

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New Member

United States
2 Posts
 Posted 05/18/2016  12:28 pm Show Profile   Bookmark this topic Add zeeborg101 to your friends list Get a Link to this Message Number of Subscribers
Hello, new to the forums.
I've been searching online for a couple days with no good answers yet, and conflicting info:

I picked up a couple of very old candlesticks last week.
I got them cheap at a thrift store, so figured what the heck.

I just got a fresh order of JSP silver and gold testing acid, and tried it.
Typically, when you put acid on base metals, they turn a green or bluish color (like the watch case pictures attached)
When I apply the silver test to the tarnished part (I believe is plate) it shows red flakes.
When I apply the gold test, NO reaction.
When I scrape a section off to clean it to fresh metal:
the silver test gives a whitish/gray residue and leaves a black mark.
the gold test creates a creamy light gray lump, and blackens the metal. (I've read that the creamy lump is silver nitrate?)
If I use acid on the shavings, they react violently, and give off a mustard colored smoke and then leaves a light gray 'ash'.

This has me very stumped.

Your thoughts?

Trouble-Testing-Suspected-Silver-Candlesticks.-Acid-Test-Question.

Trouble-Testing-Suspected-Silver-Candlesticks.-Acid-Test-Question.
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Cascade's Avatar
United States
7390 Posts
 Posted 05/18/2016  1:23 pm  Show Profile   Bookmark this reply Add Cascade to your friends list Get a Link to this Reply
Scratch it on the stone and put 18k gold acid on the scratch marks that are on the stone. If the marks turn a cottage cheese white color it's sterling silver.

I usually scratch once on one half of the stone and scratch again using the exact location of the previous scratch to scratch again on the other side of the stone then test that second scratch mark just incase it has thick plating
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Libertad's Avatar
Canada
3692 Posts
 Posted 05/19/2016  9:36 pm  Show Profile   Bookmark this reply Add Libertad to your friends list Get a Link to this Reply
Best bet is to check the specific gravity, especially for such a large object. Silver doesn't just flake off like that or discolor in splotches. Plating rubs off. Look at the solder; silver solder doesn't look like that all splattery. Instead, it moves quickly and leaves only a slight discoloration that may turn yellow. The whole brown-ness of the piece should have told you right away what it was.

Now that you've positively destroyed the piece already, why not take a drill to it (feel the metal as it's being worked, listen to the metal for overly grinding; silver cuts like butter and copper is "gummy") and look at the filings' colors? Or gouge it with something sharp to get underneath the plate. Think about this: you spent money in the hopes of finding silver, but now you just have a fugly candlestick. Learn to test things without destroying them.
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thq's Avatar
United States
3343 Posts
 Posted 05/20/2016  08:47 am  Show Profile   Bookmark this reply Add thq to your friends list Get a Link to this Reply
Specific gravity means nothing on most tableware. Most "sterling" candlesticks are made of thin sheet silver, then filled with putty and steel rod for weight and strength.

I sold a batch of corroded sterling shakers and candlesticks for my dad's estate a couple years ago and got $10. The silver content was negligible.

Stick with solid spoons and forks. If you go for knives, stay away from hollow handles.
"Two minutes ago I would have sold my chances for a tired dime." Fred Astaire
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