Yes and no. Do you mean gold color? Yes if pure, no is alloyed or compounded.
No, melting always is physical.As to the previous answer: reacting gold with an acid is not melting but oxidation.
White gold contains varying amounts of gold, which is always yellow as well white metals to lighten its color and add strength and durability. Yellow gold on the other hand is a mixture of pure gold and alloys of copper and zinc. However, white gold will be more expensive over time as it will need to be replated with rhodium.
I personally consider gold a color, since it is kind of a shade of yellow, and it isn't always used as the noun.
Prices will always vary by week. April 2012 a gram bar of gold is $52.00 - a 20 gram bar of gold is over $1,000.00
It usually sinks, but always gets wet.
gold: its always in first place
"The price of gold stocks will always be changing because the market for gold is always changing. It will depend on the supply and demand for gold, as well as the overall status of the economy."
gold fish always forget
The gold was always there in the earth and streams. The people got their by ship, by wagon train, or by horseback. pluse they always suck on a stick like a dick
Not always although they should be. I have seen many that have not been. Also even though an item is stamped that does not always mean it is gold.
Always
No, sometimes there is also 24 kt gold.
no, gold does not always need a number on it. most gold pieces don't, some like rings and other few thing might have a number saying how much karates it has but it can still be real gold if it doesnt have a number. :)
From the earliest days of civilization to the present day. Gold has always been a desirable commodity.
Goldschlager
It will Increase. If we see the historic demand for gold and the price movement of gold, it has always gone up and it will continue to do so.
The numbering system for gold is generally the karat scale. But theoretically, there could always by 825 gold. It would simply mean 82.5% gold, which is about 20 karat.