The U.S. does not make gold half dollars. For one thing they'd be worth about $700 at today's prices and not even the most boneheaded bureaucrat would make a coin that lost the gov't 699.50 on each one.
Simply put, you have an ordinary cupro-nickel half dollar that was plated for use in jewelry or similar. To a collector it's a damaged coin worth 50 cents only.
No such coin
The coin is a Sacagawea dollar, it has no gold and is worth $1.00
it is worth a dick
One dollar, and the coin contains no gold.
It's made of brass, not gold, and is worth one dollar.
A Canadian $20.00 gold coin is worth around $400.00
The coin is a Sacagawea dollar, it has no gold and is worth $1.00
It's not made of gold, and it's worth one dollar.
It's worth one dollar.
It is still worth 1 dollar
It's still worth a dollar.
That's Sacagawea, not Pocahontas, and the coin is worth one dollar.