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yes
8.1 grams.
There is no such thing as an Eisenhower half dollar, only an Eisenhower dollar coin.
It's a Half Dollar NOT a dollar coin. The coin weighs 12.50 grams and contains .36169oz of pure silver.
1.672 grams
The Australian Ten Dollar coin is a Non-Circulating Legal Tender coin issued annually by the Royal Australian Mint in a variety of different metals including gold, silver and bi-metal. The value of any coin would be dependant on the year, the metal and the theme of the coin.
None. There is no gold in any Australian general circulation coin.
What type of Australian gold coin? Do you refer to a gold coloured coin such as the One and Two Dollar coins, or a bullion coin? If you refer to a bullion coin, please provide the weight and theme of the coin.
A silver dollar weighs a little less than an ounce.
Assuming that your coin is in mint condition and still in the original packaging, and depending on the year, theme and gold content, your Australian Two Hundred Dollar gold coin might get anything from $420 to $750 AUD.
24.18% of an ounce of gold
The U.S. has never made a gold half dollar coin. Look at the coin again and post new question.