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because they are hard and expensive

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12y ago

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Is silver and gold such as jewelry, are they great semi conductor?

Yes, silver and gold are good semi conductor.


What jewelry looks good with black?

turquoise, silver, gold


What is jewelry that is toned?

The jewelry that have gold tone or silver tone means that these jewelry have been plated a thin layer of gold or silver so that these jewelry have the color of silver or gold.


What is gold jewelry alloyed with?

Silver


Why are silver and gold good metals to use for jewelry and magnesium is not?

Silver and Gold are very unreactive, meaning that they won't tarnish easily, or change colour. Gold is perfect because it never reacts at all where as silver does tarnish, so it isn't as highly prized. Also, Gold and silver don't burn. Burning magnesium is bright enough to blind you


What does BX 925 stamped on a gold piece of jewelry mean?

925 is the mark for sterling silver, which is 92.5% silver. The BX is probably the manufacturer's mark. The gold jewelry is gold-plated sterling silver.


Is the 925 mark on jewelry silver or white gold?

If the item is a silver color and says "925" on it, that means it is sterling silver. (If it were yellow and stamped "925" it would be vermeil - gold plated silver.) Visit the link below to learn more about gold and silver markings. is this a good piece of jewelry, maybe worth $25


Gold stamping on jewelry what does stamp 330 mean on jewelry?

330 on jewelry- ring what does it means


What does 750 925 mean on jewelry?

Probably that part of it is 18k gold, and part is sterling silver.


What does it mean when jewelry is labeled 14kt gold over silver?

That type of jewelry is called vermeil. It is made of sterling silver and plated with 14 karat gold, not solid gold.


How do you tell if jewelry is real gold or silver using a magnet?

Well, silver and gold aren't magnetic. It's a start, but this isn't a definitive test for metal content.


People who dig silver and gold work in what?

they work in the mining industry and the silver and Gold gets turned into Jewelry