Octahedron is a polyhedron that consists of eight faces, twelve edges, and six vertices. In other words, an octahedron is a geometric figure that consists of eight equilateral triangles connected to each other in such a way that four of them meet at a point and form a vertex. An octahedron is a dual polyhedron of a cube.

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**Examples of Octahedron**

### 1. Minerals

A number of minerals such as fluorite, pyrite, magnetite, etc., possess an octahedral structure. Diamonds are also shaped like an octahedron. Hence, one can easily observe the octahedron geometric shape while looking at the shape of minerals and gems.

### 2. Decorative Pieces

One of the prime applications of octahedron geometric shape lies in the construction of certain decorative pieces. So, if you are planning to add a fancy look to your apartment, you may opt for octahedron-shaped decorative pieces.

### 3. Dice

Some of the board games make use of octahedron dice. An octahedron dice consists of eight triangular faces each of which consists of an alphanumeric character engraved on it.

### 4. Rubik’s Cube

A Rubik’s cube is one of the most popular puzzle games. It comes in a variety of shapes and sizes. Some of the popular shapes used to construct a Rubik’s cube are a cube, pyramid, and octahedron.

### 5. Ornaments

Some of the ornaments such as earrings, pendants, etc., are also shaped like an octahedron. Hence, they are a prominent example of octahedral objects used in real life.