Pyrophyllite is a soft, clay-like mineral primarily composed of aluminum silicate. It is known for its excellent heat resistance and is often used in ceramics, refractories, and as a filler in various products. Its unique properties make it valuable in industries such as construction and manufacturing. This mineral typically appears in shades of white, gray, or green and has a layered structure that allows it to be easily split into thin sheets. Pyrophyllite is often found in metamorphic rocks and can be mined in several countries, including India and Brazil.