Jasper is not a compound. It's a rock, which means it's a mixture of different minerals.

Here's why:

* Compounds are formed when two or more elements chemically combine in a fixed ratio. For example, water (H₂O) is a compound because it's always made of two hydrogen atoms and one oxygen atom.

* Rocks are made up of different minerals, which are themselves compounds. Jasper is primarily composed of quartz (SiO₂) and other minerals like iron oxides, which give it its characteristic color and pattern.

So, while jasper contains compounds like quartz, it's not a compound itself. It's a mixture of different minerals.