A Willa Cather gold medallion typically contains a standard amount of gold, such as 14k or 18k, which refers to the purity of the gold. The weight of the medallion will determine how much actual gold is present in the piece.
There are 3.11 tenths of a gold coin in a troy ounce.
The coin has 3.1103 grams of pure gold in it or 1/10th of an Troy ounce.
The coin is one half ounce of pure gold by net weight, composition is .9167 gold, .03 silver and .0533 copper.
what is the weight of one half ounce suid-afrika gold coin?
This is a 1 ounce gold bullion coin. The value is tied to the spot price of gold at the time of sale. Now it's $1,236.30 per ounce, this is the approximated value of the coin.
If I understand your question, you are asking if these coins are made of gold. Yes they are made of gold, but they are not technically coins because they have no monetary value affixed to them (i.e., $1, $5, &c.). I have seen them called medals or medallions, but they are not coins. I am not certain how much gold is contained in these American Arts series, but I'd guess 1/2 oz.
The spot price of gold is $1,115.40 per ounce as I type this, that's also the value of the coin. The coin is 1 ounce of pure gold.
A troy ounce is about 31 grams and the US standard ounce (avoirdupois) is about 28 grams. When buying coins, or gold or silver, you get more by getting a troy ounce. The price of gold and silver is in troy ounces. So, for example, if gold is $1400 an ounce, that price is for a troy ounce. A 28 gram ounce of gold is not worth $1400.
In 1849, one troy ounce of gold was worth $20. A $20 coin contained .9675 ounce of pure gold.
There are three different types of gold American Eagles coins. The one ounce coin costs fifty dollars. The quarter-ounce coin costs ten dollars, and the tenth-ounce coin costs five dollars.
24.18% of an ounce of gold