Are vintage US coins made of silver or gold?

Are vintage US coins primarily crafted from shimmering silver or opulent gold? It's a question that many collectors and enthusiasts ponder, especially when it comes to assessing the value and rarity of these historic pieces. Understanding the composition of these coins can be crucial in determining their authenticity, as well as their potential worth on the market. So, let's delve into this inquiry and explore the metallurgical makeup of vintage US coins, shall we?