Here is a general idea of how long dollar coins may last:
Golden Dollar Coin (Sacagawea Dollar): The golden dollar coin, also known as the Sacagawea dollar, is composed of a copper core clad with a manganese brass outer layer. These coins are more resistant to wear and tear compared to traditional copper-nickel coins. The lifespan of a golden dollar coin can be several decades under normal circulation.
Kennedy Half Dollar: The Kennedy half dollar, minted since 1964, is made of an outer layer of copper-nickel clad over a pure copper core. While these coins are more durable than their copper-nickel counterparts, they can still exhibit wear and tear over time. Under normal circulation, Kennedy half dollars may last for several decades.
Susan B. Anthony Dollar Coin: The Susan B. Anthony dollar coin was introduced in 1979 and was composed of a copper-nickel alloy. These coins were smaller in size compared to other dollar coins and were often mistaken for quarters, leading to their unpopularity and discontinuation in 1999. Due to their limited lifespan and subsequent withdrawal from circulation, the Susan B. Anthony dollar coins may have a shorter lifespan compared to other dollar coins.
It's important to note that the lifespan of dollar coins can vary based on individual handling and environmental factors. Coins that are frequently handled, exposed to harsh conditions, or subjected to mechanical wear and tear may have a shorter lifespan. Proper storage and care can help extend the longevity of dollar coins, preserving their condition and retaining their value as both legal tender and collectible items.