Origin
Southern and central Africa
USA
Color
Blue, Violet, Brown, White, Greenish, pink
Yellow, Red, Green, Colorless, orange
Streak
White
Yellow, yellowish orange
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
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.415.50-5.90
1
7.18
👆🏻
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
On {10 1 0}, perfect; parting on {000 1 }
Mohs Hardness
7-8.54
2
10
👆🏻
Chemical Composition
AlAl6O3BSi3O18
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Subadamantine, Resinous
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Very weak
Dispersion
0.010.16
0.005
1
👆🏻
Transparency
Translucent, Translucent to opaque
TransparentRobert C. Kammerling
Refractive Index
1.669-1.7232.013-2.029
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.011-0.0370.016
0
0.296
👆🏻
Clarity
Translucent
TransparentRobert C. Kammerling
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Patience
Passion
Healing
Emotional healing
-
Qualities Associated
Patience
-