If we can dig and mine up coal, does that mean that it was once a tree that burned down?

Question

If we can dig and mine up coal, does that mean that it was once a tree that burned down?

In: 245

Answer 1

It’s theoretically possible that there are some are some burned up trees mixed into coal deposits. But coal forms from trees and plants even if they just die and fall over and get buried.

It kinda looks like charcoal but coal isn’t “burnt” .