Sillimnaite is a natural rich alumino silicate mineral. The industrial uses of sillimanite mineral specially related to their unique chemical and physical properties. High alumina content and lower fe2o3 and LOI contributes to its main chemical properties. Withstanding the high temperatures and pressure the material is highly suitable for refractory and foundry application. The sillimanite mineral in raw or calcined form is specially used in manufacturing of refractory bricks, shapes, castings, monolithics, ramming and gunning mixtures. SKKU MINERALS manufacturers ground sillimnaite in the mesh size of 80-100, 200 and 300 mesh size respectively with various packaging options.