* Crystalline Structure: Quartz is a crystalline mineral, meaning its atoms are arranged in a highly ordered, repeating pattern. This pattern can form a variety of shapes, but the most common is a hexagonal prism topped with a six-sided pyramid.

* Variations: While the basic structure is hexagonal, quartz crystals can be incomplete, fractured, or grow in unusual ways. This means you can find quartz crystals with more or fewer sides, or with sides that are not perfectly shaped.

* Variety of Forms: Quartz also comes in many different varieties, like amethyst, smoky quartz, and citrine, which can have distinct appearances.

So, the number of sides on a quartz crystal is not a fixed number. It depends on the specific crystal and its growth conditions.