Anorthosite

Description

Anorthosite is an intrusive igneous rock defined by its phaneritic texture and high concentration of plagioclase feldspar, which accounts for 90 to 100 percent of its mineralogical composition. The remaining portion consists of mafic minerals, typically including pyroxene, magnetite, olivine, and ilmenite. In ceramic and geological contexts, the presence of ilmenite within the plagioclase matrix influences the material's behavior. As a feldspathic resource, anorthosite serves as a potential source of alumina and fluxing agents in ceramic formulations, though its utility is dictated by the specific proportions of its iron-bearing accessory minerals.