Chatoyant material sometimes yields catseye fibrolites which are also very rare. Beautiful sillimanite pairs for sale online. The material from kenya is just as attractive as burmese fibrolite but seems to be somewhat smaller in size. Sillimanite is a rare transparent to opaque gemstone that occurs in colorless grayish white green bluish and brownish hues. Sillimanite occurs in a number of colors ranging from colorless to gray white yellowish brownish and bluish.
Blue and greenish gems are lovely although very difficult to cut. Sillimanite gems may show a cat s eye and be cut en cabochon or they may be faceted transparent gemstones. Like diamond topaz and fluorite sillimanite has perfect cleavage. Sillimanite kyanite and andalusite all share the same chemical composition al2sio5 but each exhibit differing unique crystal structures. Sillimanite is composed of aluminum silicate which is a polymorph.
Sillimanite occurs in a number of colors. It has a refractive index of 1 655 to 1 684. The fibrolite from burma and sri lanka is well known to gem collectors and highly prized because of its great scarcity. Its specific gravity is 3 23 to 3 27 placing it between apatite and diopside on the density scale. Even though it is associated with all the chakras sillimanite can especially connect with the heart chakra.
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It is popular for its healing powers and the ability to bring joy peace and prosperity to the user. Sillimanite is a rare and exquisite gemstone and is often called fibrolite. The colors of sillimanite include colorless grayish white green bluish and brownish. Buy now and receive 10 off your first purchase. Sillimanite is considered to stimulate the production of endorphins in the human body.Sillimanite is rarely transparent. Dark colored sillimanite cat s eye gems generally exhibit a pronounced and sharp cat s eye. Approximately the same as that of spodumene its specific gravity is 3 23 to 3 27 placing it between apatite and diopside on the density scale. Historically sillimanite is a rare gemstone known mainly to collectors. Sillimanite is an extremely rare and lesser known collector s gem.
Silliman was one of the first american professors of science and taught at yale university. Sillimanite has a hardness of 6 5 to 7 5 on the mohs scale and a vitreous to silky luster. A fibrous variety of sillimanite is traded as fibrolite. It is even believed increasing energy and a general feeling of well being. Sillimanite forms as orthorhombic hexagonal crystals whereas kyanite and andalusite crystals are both formed as triclinic crystals.
Sillimanite forms as orthorhombic hexagonal crystals whereas kyanite and andalusite crystals are both formed as triclinic crystals. Silliman was one of the first american professors of science and taught at yale university. Sillimanite is rarely transparent. It is popular for its healing powers and the ability to bring joy peace and prosperity to the user. Sillimanite occurs in a number of colors.
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It is even believed increasing energy and a general feeling of well being. Blue and greenish gems are lovely although very difficult to cut. Chatoyant material sometimes yields catseye fibrolites which are also very rare.
