Kyanite - knowledge base, jewelry
Properties of kyanite, physiological effects, zodiac signs and kyanite jewelry.
Kyanite is a typical bluish aluminium silicate.
Chemical and physical properties of kyanite:
Formula:
Al2SiO5
Crystal system:
triclinic
Category:
nesosilicate
Color:
blue, white, rarely green, light grey-grey, rarely yellow, pink, orange and black
Streak:
white
Transparency:
transparent- translucent
Cleavage:
perfect- less perfect
Fracture:
splintery
Mohs scale hardeness:
4,5 – 5,0 parallel with one axis
6,5 – 7,0 perpendicular to that axis
Specific gravity:
3,53 – 3,65 g/cm³
Major metaphysical healing properties attributed to kyanite:
Vivid dreams, good visualisation, loyalty, sincerity, serenity. Reduction of high blood pressure, prevention of infection, good sleep, reduction of pain.
Zodiacs associated with kyanite gemstones:
Kyanite is the gemstone of the zodiac sign of Aries, Taurus and Libra.
Click here to read about the general characteristics of horoscopes!
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Use of kyanite Kyanite is often used as an index mineral to define and trace a metamorphic zone that has undergone some degree of metamorphism at great depth in the crust.
Kyanite is used primarily in refractory and ceramic products, including porcelain plumbing and cookware. It is also used in electronics, electrical insulators and abrasives.
Kyanite is also used as a gemstone. It can have an interesting cat's eye effect, although this use is limited by its anisotropic properties and perfect cleavage.
The wearing of kyanite was believed to protect the wearer from evil spirits.