Sillimanite Cat's Eye
About Sillimanite Feline’s Eye Gemstone
Sillimanite (otherwise called Fibrolite) is a polymorph with Andalusite and Kyanite. A polymorph is a mineral that offers a similar science with another, or other, minerals yet has an alternate precious stone structure. Sillimanite is the rarest of the three trimorphs. Sillimanite Gemstone is for the most part known as a catseye jewel when in its sinewy, huge shape, however lovely, clean faceted diamonds are likewise accessible albeit faceted pearls are uncommon in light of the fact that clean Sillimanite is rare and hard to cut.
Sillimanite is found in numerous areas worldwide yet diamond quality gems are very uncommon. The main wellsprings of diamond quality Sillimanite precious stones are Orissa, India; Mogok, Myanmar (Burma); Ratnapura, Sabaragamuwa Area, Sri Lanka.
Properties of Sillimanite Feline’s Eye Stone
Concoction Sythesis : Al2SiO5 [Aluminum Silicate]
Hardness : 6.5 – 7.5
Particular Gravity (Thickness) : 3.23 – 3.24 (g/cm3)
Refractive List : 1.653 – 1.684 Biaxial ( + )