Know the Mineral

Andalusite

July 26, 2021

• Andalusite(Al₂SiO₅) is a common metamorphic mineral that forms under low pressure and high-temperature found in schist and gneiss rock at convergent plate boundaries.
• kyanite and sillimanite are polymorphs of Andalusite 
• It is used as refractory in furnaces. kilns and other processes 
• south Africa possesses the largest portion of the world known Andalusite deposits