Peridot minerals are typically found in a rhombic shape, which means they have four equal sides and four equal angles. However, they can also be found in other shapes such as:

* Prismatic: Long, narrow shapes with six sides.

* Granular: Small, irregular shapes.

* Rounded: Smooth, rounded shapes.

The specific shape of a peridot mineral will depend on the crystal system it belongs to and how it was formed.