👉 In chemistry, a "witherite" is a type of crystal that forms when a metal is heated to a high temperature and then cooled rapidly. This process results in the formation of two different types of crystals: an amorphous structure (which is typically unstructured) and a crystalline structure (where the atoms are arranged in a regular pattern). Witherites can be found in various minerals, such as quartz and calcite, which are also used in various industries.