How Do You Test 14k Gold Jewelry Using Acid?

http://www.goldpalusa.com

An acid test is any qualitative chemical or metallurgical assay which uses acid; most commonly, and historically, the use of a strong acid to distinguish gold from base metals. Figuratively, acid test is any definitive test for some attribute or of the performance of some product.
The traditional acid test for gold consists of placing a small drop of a strong acid, such as nitric acid, onto the metal's surface. Most metals fizz or bubble, while precious metals remain unaffected. The acid test is thus decisive, immediate, cheap and simple to perform.

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[mangirl111]

@zurriagazo71 file the top layer off

take a loop and check if you see any other color.

[gitano045]

...Also if the acid turns GREEN with fumes,it's NOT gold.!

[TheThingseyelike]

Do those shadows after the acid every go away ? if you decide you do not want to sell it for scrap does it damage the item for good? thankyou

[dayadayadaya123]

Besides yelllow gold, there is also "red" gold?

[zurriagazo71]

what if they are just coated?

[hkun88]

thank you, superb video!

[GMELECTRONICS365]

The piece could be marked 14k but it could be 10k or not.

From my experience.

[vavoom3]

Excellent presentation.

[winkhvac]

cool man

[TheBritbuddy]

thank u