The last Morgan Dollars were minted in 1921, the only dollar coin minted in the US in 1980 is the Susan B. Anthony dollar which is about the size of a quarter, not the larger size of a Morgan Dollar coin. They are rather common and only worth one dollar.
I have a Canadian Dime 1980 with smooth edges too but have no idea how much it is worth
10 cents.
There are no gold dimes.
It's either a novelty coin or a gold plated dime. If it's only a gold plated dime it's worth around $2.50. If it's a novelty coin it's worthless.
US dimes were never made of gold.
What is 1912 dime worth
This did not come from the mint like that. It has to be gold plated. No collector value.
10 cents, it's a novelty coin that has been plated.
Ten cents - it's not real gold, it's plated. The US never made gold dimes.
10 cents. The plating makes it an altered coin.
A dime is worth 10 pennies. A dime is worth 1/10 of a dollar.
The term "5 dollar dime" is confusing. Dimes from 1997 are worth 10¢. If you have a normal Roosevelt dime that has been gold plated, it's still only worth 10 cents. If you are referring to a dime-sized coin that has a $5 denomination, please post a new question indicating the country that issued it and a description of any wording on the coin. That would make it much easier to ID.