Sillimanite (Fibrolite)

About Sillimanite (Fibrolite)

Sillimanite, sometimes called Fibrolite, is a silicate mineral known for its brown, green, or yellow-brown hues. Some high-quality stones may show a silky luster or chatoyancy. It is primarily sourced from Sri Lanka, India, and Madagascar. Though less commonly used in mainstream jewelry, sillimanite is appreciated for its distinctive fiber-like appearance and collector value.