Origin
Italy, Canada
Southern and central Africa
Color
Blue, Red, Yellow, Colorless, Green, White
Blue, Violet, Brown, White, Greenish, pink
Streak
White
White
For which Rashi?
-
Leo, Sagittarius
Planet
-
Saturn
Element of Planets
-
Water
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Isis
Not to wear with
-
-
Powers
-
Healing
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.103.26-3.41
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Fibrous, ConchoidalWalter Schumann
Cleavage
Poor/indistinct on {1120} and {1011}
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
77-8.5
2
10
👆🏻
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
AlAl6O3BSi3O18
Luster
Vitreous
Vitreous
Pleochroism
Pale green
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Translucent, Translucent to opaque
Refractive Index
1.614-1.6661.669-1.723
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Orthorhombic
Birefringence
0.014-0.0320.011-0.037
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Emotional healing
Patience
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Patience