Amber is a hard, yellow to orange organic substance that is fossilized tree resin. It is often used in jewelry. Many people consider amber to be a type of rock, but is it? Let's take a closer look at what makes something a rock and see if amber fits the bill.
Most people think of rocks as being big and heavy - and they are, of course. But the definition of a rock is actually quite simple: a rock is any natural material that consists of solid mineral matter. That's it! So, technically speaking, ...