i do see 3 numbers on the necklace and on the bracket also
2006-07-21 18:33:30 · 12 answers · asked by mire 1 in Social Science ➔ Economics
Take it to a jewler unless you have your own chemistry lab at home and know how to do "qualitative analysis" to determine what metal is oxydizing.
If it is sterling silver, it should have a stamp saying "Sterling" or 925 and it should polish with silver polish to a bright yellow-white. The tarnish should be yellow and turn to black powder on the surface of the metal.
The definitive answer is to take a small sample, put it in solution, and run that solution through a mass spectrometer to see the wavelengths (and therefore the elements) contained in the sample.
2006-07-21 18:52:12 · answer #1 · answered by urbancoyote 7 · 0⤊ 0⤋
The Archimedean method is to get into a bathtub completely filled with water, collect the water that sloshes out when your body enters (it is said to be "displaced"), and then weigh that water. Next go to a library, a high school chemistry teacher, a jeweller, or a bright Internet researcher, and tell that person the weight of the silver necklace and the three numbers on it. The three numbers SHOULD reflect the "fineness" (i.e. purity) of the silver. Your bright friend should then be able to tell you the specific gravity of the necklace IF the information stamped on the necklace is correct. The specific gravity will tell you how much water will be displaced by the necklace when you put it into water.
Next, you get into the filled tub exactly as before, but wearing the necklace, which must be submerged in the water. Have someone gather up all of the water displaced this time and subtract the amount of water that you displaced the first time. The result will be the amount of water displaced by the necklace alone. Your bright frind should have been able to calculate the specific gravity of the necklace IF the fineness stamp is correct and thus predicted how much water would be displaced. If the amount of water displaced matches the prediction, the stamped finess is correct. If the water displaced by the necklace is LESS than the prediction, then the necklace probably has copper or some other lightweight metal mixed in a proportion greater than that stated, and you've been ripped off.
After performing this experiment, it is customary to leap from the bathtub and run naked through the streets, shouting, "Eureka!"
To be true to the Scientific Method you should repeat the experiment several times and correlate the results to rule out error. This will also cause copper and other cheap alloyed metals to turn your skin green under the necklace if the necklace isn't legitimate. Silver ought not to turn your skin green!
2006-07-22 07:19:00 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Check for the number 925.
2006-07-21 18:37:23 · answer #3 · answered by sheila c 3 · 0⤊ 0⤋
they're the comparable factor basically distinctive colorings. while goldfish hatch they're silver or brownish to combination in so greater proceed to exist. After numerous weeks they adjust into the uncomplicated orange coloration even nonetheless some to no longer substitute.
2016-10-08 04:47:36 · answer #4 · answered by ? 4 · 0⤊ 0⤋
not 825---somewhere on the necklace it will say 925.
2006-07-21 18:37:07 · answer #5 · answered by Anonymous · 0⤊ 0⤋
925 is the marking
2006-07-21 18:35:57 · answer #6 · answered by leo 4 · 0⤊ 0⤋
take it to a jewler. you need a trained eye
2006-07-21 18:35:49 · answer #7 · answered by dezoizm79 2 · 0⤊ 0⤋
dip it in vinegar. if the silver reacts or changes, then it is not real.
2006-07-21 20:16:19 · answer #8 · answered by waterberry_fall 1 · 0⤊ 0⤋
how can i know if my necklace is real?
2014-09-19 13:42:55 · answer #9 · answered by Anonymous · 0⤊ 0⤋
take it to a jewler
2006-07-21 18:35:12 · answer #10 · answered by chill'n 3 · 0⤊ 0⤋