👉 Metastibnite is a type of mineral that occurs in the Earth's crust and can be found in various forms, including feldspar, mica, and quartz. It is named after its characteristic "metastable" state, which means it retains its original composition when exposed to heat or pressure. This property makes metastibnite minerals useful for a variety of applications, such as in the production of glass, ceramics, and other materials.
