Black Kyanite is a fibrous variety of kyanite known for its fan-like or bladed crystal formations and dark black to charcoal color. It typically occurs in radiating structures with a natural layered texture.
Composed of aluminum silicate, it has a variable hardness of 4.5–7 on the Mohs scale depending on the crystal direction. It is commonly sourced from regions such as Brazil and India.
Each piece displays natural variations in shape, texture, and formation, making every specimen unique.
