There are different types of fracture, each describing a different appearance:

* Conchoidal: Smooth, curved surfaces, like a broken piece of glass.

* Hackly: Sharp, jagged edges.

* Uneven: Irregular, rough surfaces.

* Splintery: Breaks into thin, splintery fragments.

* Fibrous: Breaks into fibers.

While cleavage describes a mineral's tendency to break along specific planes of weakness, resulting in smooth, flat surfaces, fracture describes the way a mineral breaks when it doesn't follow those specific planes.