The color of metals has always been important in various cultures. Alchemists tried to produce gold.

The Panic of 1893 led to the repeal of the Sherman Silver Purchase Act and reinforced the gold standard in ... where the uneven or overly bright colors reveal the coin's true deceitful nature.

The owner initially spotted that the coin was out of the ordinary, but kept it until they saw a similar coin being auctioned ...

One SP (silver plug) version sold for over $10 million in 2013. Described as a “unique specimen and the first distinctive American gold coin ... The coin is categorized by color — brown ...

All that glitters isn't gold. Sometimes it's silver ... Investors can buy 99.9% pure silver bars ranging in weight from 1 ounce to 100 ounces or bullion coins such as the 1-ounce American Eagles ...