Kyanite

Kyanite (Al₂SiO₅) is a refractory mineral widely used in ceramics to improve thermal shock resistance, reduce shrinkage, and strengthen clay bodies. When fired, kyanite undergoes a slight expansion, which helps counteract the natural shrinkage of clay, making it especially valuable in stoneware, porcelain, and refractory applications. Its stability at high temperatures also makes it useful in kiln furniture and insulating materials where durability under repeated firings is essential.

Dust from kyanite contains crystalline silica, which can be harmful if inhaled. It may also irritate eyes and skin. Always wear gloves, a dust mask or respirator, and work in a well-ventilated area. Do not ingest, and wash hands thoroughly after handling.

Learn more about Kyanite on DigitalFire.com.