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2. Gold-filled jewelry - Wikipedia

   en.wikipedia.org/wiki/Gold-filled_jewelry

   The related terms "rolled gold plate" and "gold overlay" may legally be used in some contexts if the layer of 14k gold constitutes no less than 5% weight of the item. In the jewelry industry, gold-filled is never abbreviated as "GF" or "gold GF" on product markings.

3. Colored gold - Wikipedia

   en.wikipedia.org/wiki/Colored_gold

   Gold-cobalt-chromium alloy (75% gold, 15% cobalt, 10% chromium) yields a surface oxide that is olive-tinted because of the chromium(III) oxide content, is about five times thinner than Au-Co and has significantly better wear resistance. The gold-cobalt alloy consists of gold-rich (about 94% Au) and cobalt-rich (about 90% Co) phases; the cobalt ...

4. Fineness - Wikipedia

   en.wikipedia.org/wiki/Fineness

   The quantity of gold by volume in a less-than-24-carat gold alloy differs according to the alloys used. For example, knowing that standard 18-carat yellow gold consists of 75% gold, 12.5% silver and the remaining 12.5% of copper (all by mass), the volume of pure gold in this alloy will be 60% since gold is much denser than the other metals used ...

5. Gold vs. silver investing: Which is better when interest ...

   www.aol.com/gold-vs-silver-investing-better...

   Gold and silver are both precious metal assets worth investing in, but one could be a better bet right now. / Credit: Getty Images/iStockphoto Until recently, inflation had been high in the U.S.

6. 15 Best Places To Sell Your Gold for Cash

   www.aol.com/15-best-places-sell-gold-145103625.html

   Jewelry is often made from 18k or 14k gold. In many cases, this information is stamped somewhere on the piece of gold itself. ... If you opt for an in-person buyer, don’t be afraid to negotiate ...

7. Gold vs. silver: Which is the better investment?

   www.aol.com/finance/gold-vs-silver-better...

   Gold vs. silver: Inflation hedge. Gold is often touted as an inflation hedge, helping to protect investors from rising inflation. So when markets get rough, many investors flee to gold to ride out ...