#industrial minerals
- Andalusite — A structural mineral consisting of aluminum silicate that crystallizes in the orthorhombic system, being characteristic of metamorphic rocks formed under low pressures and medium to high temperatures. Due to its exceptional thermal resistance and high melting point, andalusite is widely used in industry as a refractory material for lining metallurgical furnaces, while its transparent and colored varieties are sometimes used as gemstones in jewelry.
- Arseniferous — Containing or bearing arsenic in its structural composition; said of ores, rocks, geological strata, or groundwater in which arsenic is present as a stable chemical component or as a significant metallic impurity. The identification of arseniferous deposits is crucial in economic geology and environmental risk assessment, as processing these materials can release toxic substances into the surrounding environment.