Sillimanite Specifications
Sillimanite Specifications include its chemical, physical and optical properties of natural gemstones. These are displayed through measurements of light dispersion, hardness, density or specific gravity, cleavage, fracture, tenacity, refractive index and luster. These properties vary depending on the type of natural gemstone. Here, to give you a basic insight about Sillimanite, we provide you with a few prominent Sillimanite facts.
The gem is commonly found in USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy and Brazil.Chemical formula is majorly responsible in contributing the Physical Properties of Sillimanite. It is mainly composed of Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006).