There were no Sacajawea gold dollars minted in 1990.
Assuming you have a gold-colored "Loonie" coin, it's only worth face value. Like the Sacagawea and Presidential dollars in this country, it's not made of gold. 1990 Loonies are made of nickel plated with a gold-colored brass alloy.
If your asking about one of the Sacagawea or Presidential dollars, unless it's a Proof coin the value is $1.00.
Not gold, brass. There are about a billion Sacagawea dollars in circulation and all are worth exactly one buck.
None of the SACAGAWEA dollars regardless of date or mintmark are made of gold. The U.S. does not use any gold coins for general circulation. It's just a dollar.
This is a Sacagawea dollar coin. It's not gold and is just face value.
The coin is a Sacagawea dollar, it has no gold and is worth $1.00
Like the Sacagawea and Presidential dollars in this country, it is not made of gold, it's a gold-colored coin made of base metals. Assuming your coin came from circulation it's a standard issue that is worth only face value, about 95 cents U.S. at current exchange rates.
If the coin's date is 2000 it's simply a Sacagawea (or Sacajawea) dollar. It's very different from an Anthony dollar:SBA dollars were minted for circulation in 1979, 1980, and 1999Sacajawea dollars are all dated 2000 and laterSBA dollars were made of copper-nickelSacajawea dollars are made of brass and so aren't the same colorIf your coin is actually gold-plated that doesn't affect its value. It would cost more to remove the gold than it's worth even if you could sell such a tiny amount. While it may be an interesting conversation piece its value is still only $1.
About $2000.00. Sacajawea dollars are worth just that a dollar.. they are made up of copper and nickel with a thin Gold plating.
If you mean one of the Sacagawea dollars or a Presidential dollar the date is on the edge of the coin and its not gold.
"Golden" Sacagawea dollars and the new Presidential Dollars, don't contain any gold. They are made of a bronze alloy that approximates the color of gold. However if you have a tiny (14 mm diameter) gold dollar from 1849 to 1889, it's real gold and the bullion value then was about $1. Now that tiny coin has over $100 worth of gold in it, but of course is worth considerably more as a collectible.
It's just a Sacagawea dollar, spend it.