1890 is a common date Morgan and is not rare or scarce.
A rare Morgan Silver Dollar is 1876.
The Morgan silver dollar is a collectors item and can be about $39
Circulated coins are valued at $17.00-$36.00 depending on the grade it's not a rare Morgan mint state coins are $45.00-$60.00
The 1883 Morgan is a very common coin. It is not considered rare or even scarce.
No, these are not considered rare.
George T. Morgan never designed a circulating half dollar. He's known for having designed the famous silver dollar(1878-1904 and 1921) that carries his name.
The 1879 Morgan dollar is not scarce or rare, assuming it's circulated and has no mintmark, average retail values are $26.00 to $32.00 depending on how much wear the coin has.
The 1879 Morgan dollar is not scarce or rare, assuming it's circulated and has no mintmark, average retail values are $30.00 to $41.00 depending on how much wear the coin has.
It doesn't exist. "Morgan" describes the silver dollars designed by George T. Morgan that were minted from 1878 to 1904 and in 1921. If your coin is a genuine US silver dollar dated 1800 it would be called a Draped Bust dollar and could be quite valuable, but there are MANY counterfeits. Please see the Related Question for more details.
The 1897-S MORGAN dollar is not scarce or rare, an average retail value for the coin is $26.00-$32.00.
1924 would make it a Peace dollar, not a Morgan. It's also not a rare date, so the value is mainly for its silver content. At present, a '24 or '24-D dollar is worth $22 to $30 depending on condition, while a '24-S is worth a bit more.
Most silver dollars are worth 15-20 dollars. Certain rare mint marks can increase the value. And, of course, condition is very important.