Kyanite

Hardness ( Moh )

" 6 - 7

Crystal System

Triclinic

Specific Gravity

3.68

Refractive Index

1.710 - 1.735

Birefringence

Family

Colour(s)

Blue, white, rarely green, gray, yellow, pink, orange, and black

Cleavage

Francture Type

Splintery

Luster

Streak

White

Transparency

Transparent to translucent

Formula

Al2SiO5

Country

Found In Afghanistan,Antarctica,Argentina,Australia,Austria,Bangladesh,Belgium,Bolivia,Botswana,Brazil,Bulgaria,Burkina Faso,Canada,China,Colombia,Cuba,Czech Republic,DR Congo,Ecuador,Egypt,Ethiopia,Finland,France,Germany,Greece,Greenland,Hungary,India,Ireland,Israel,Italy,Japan,Kazakhstan,Kenya,Liberia,Madagascar,Mauritania,Mongolia,Morocco,Mozambique,Myanmar,Namibia,Nepal,Netherlands,New Zealand,North Korea,North Macedonia,Norway,Pakistan,Poland,Portugal,Romania,Russia,Sierra Leone,Slovakia,Slovenia,Somalia,South Africa,South Korea,Spain,Sri Lanka,Sudan,Suriname,Sweden,Switzerland,Tajikistan,Tanzania,Turkey,Uganda,UK,Ukraine,USA,Vietnam,Zambia,Zimbabwe