* Dimes: 91.67% copper, 8.33% nickel
* Nickels: 75% copper, 25% nickel
These are all metals, which are inorganic.
However, it's important to note that coins can contain trace amounts of organic substances due to:
* Patina: This is the greenish layer that forms on copper coins over time due to oxidation and reaction with environmental factors like air and moisture. Patina can contain organic compounds like carbonates and sulfates.
* Contamination: Coins can accumulate dust, dirt, fingerprints, and other organic materials during handling and circulation.
These organic substances are usually in very small quantities and don't significantly alter the composition of the coins.
So, while coins are primarily made of inorganic materials, they can contain trace amounts of organic compounds due to patina formation and contamination.
