It's not made of silver, and it's either not Sacajawea or not 1979.
All 1979 $1 coins have a picture of womens'-rights advocate Susan B. Anthony and are made of copper-nickel.
All Sacajawea dollars are made of brass and were first struck in 2000.
In either case the coin is only worth face value. Feel free to spend it.
Sacagawea silver dollar coins were not minted in 1979. The first year of issue for Sacagawea dollar coins was 2000, and they are made of a copper-nickel clad composition, not silver.
The coin is not a silver liberty dollar. It's a 1979 Susan B. Anthony Dollar coin and has no silver in it and the value is one dollar.
The coin is a 1979 SBA dollar and it's NOT silver. The coin is still found in circulation and is just a dollar.
The 1979 one dollar coins DO NOT CONTAIN SILVER and are still in circulation today with a value of one dollar.
The first "Sac" dollars were struck in 2000 and are made of gold-colored brass. If your coin is silver-colored and dated 1979 it's a copper-nickel Susan B. Anthony dollar. In either case it's worth exactly $1.00
In 1979, the dollar coin issued by the US was the Susan B. Anthony, which has no silver content and no real collector's value, so is a "spender".
With a date of 1979 the coin has no silver in it. 1969 was the last 40% silver circulating US half dollar. The coin is worth 50 cents.
A US half dollar with a date of 1979 is a Kennedy half dollar not a liberty half dollar. The coin has no silver and is only face value.
The coin is not a "Liberty" silver dollar, it's a Susan B. Anthony and was never made from silver only copper-nickel. The coin is still in circulation today and is face value.
Morgan dollars were made from 1878 to 1904 and in 1921.
50¢ Please look at the back of the coin. It's a HALF dollar. It's also made of copper-nickel, not silver.
The coin is not a "Liberty" silver dollar, it's a Susan B. Anthony and was never made from silver only copper-nickel. The coin is still in circulation today and is face value