Sunrise Group of Industries is counted amongst Manufacturers, Exporters & Suppliers of high quality Sillimanite. We offer premium quality Sillimanite that is preferred in Fire Bricks as well as Refractory applications. Sillimanite is a polymorph with two other minerals; kyanite and andalusite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Sillimanite is the rarest of the three trimorphs. A variety of sillimanite is called "fibrolite". It is a common fibrous massive form.