are silver dollars actually made of silver

[McAniyah]

That's a great question, and the answer really depends on the year the coin was minted! The provided search results didn't contain specific details to answer this, so here is an answer based on general knowledge.

Historically, U.S. dollar coins absolutely lived up to their name. Dollar coins that were minted for circulation up to and including 1935, such as the famous Morgan and Peace dollars, were indeed made of 90% silver and 10% copper.

However, after 1935, the U.S. stopped making silver dollars for circulation for many years. When they brought the dollar coin back with the Eisenhower dollar (1971-1978), the coins intended for circulation were made of a copper-nickel blend and had no silver content. At the same time, the U.S. Mint also produced special collector's versions of the Eisenhower dollar that were made with 40% silver.

Any modern dollar coin you find in your pocket change today, like the smaller Sacagawea or Presidential dollars, contains no silver at all. They are typically made of a manganese-brass alloy.

The U.S. Mint does still produce a one-dollar coin called the American Silver Eagle, which is 99.9% pure silver, but these are bullion coins intended for collectors and investors, not for general circulation. So, while many historic "silver dollars" are genuinely silver, the dollar coins you're likely to encounter today are not.