Minerals are almost always found in the solid state of matter.

Here's why:

* Definition of a mineral: A mineral is a naturally occurring, solid substance with a specific chemical composition and a defined crystal structure.

* Solid state properties: Solids have a fixed shape and volume, which is consistent with the characteristics of minerals.

Exceptions:

While most minerals are solid, there are some exceptions:

* Mercury: This element is a liquid at room temperature and can be considered a mineral.

* Water Ice: This is a crystalline form of water and therefore a mineral.

* Some minerals can exist in different states: For example, sulfur can be found as both a solid and a liquid depending on temperature.

However, these exceptions are relatively rare.