Crystal boba

This article is about crystalline solids. This article crystal boba additional citations for verification.

Please help improve this article by adding citations to reliable sources. Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i. Despite the name, lead crystal, crystal glass, and related products are not crystals, but rather types of glass, i. Microscopic structure of a halite crystal.

The scientific definition of a “crystal” is based on the microscopic arrangement of atoms inside it, called the crystal structure. A crystal is a solid where the atoms form a periodic arrangement. For example, when liquid water starts freezing, the phase change begins with small ice crystals that grow until they fuse, forming a polycrystalline structure. The unit cells are stacked in three-dimensional space to form the crystal. The symmetry of a crystal is constrained by the requirement that the unit cells stack perfectly with no gaps. As a halite crystal is growing, new atoms can very easily attach to the parts of the surface with rough atomic-scale structure and many dangling bonds.