Origin
Southern and central Africa
Sri Lanka, Burma, USA, Russia
Color
Blue, Grey
Yellow, Brown, pink, Colorless
Streak
-
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.58-2.643.46-3.50
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
-
Perfect
Mohs Hardness
76-7
2
10
👆🏻
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
-
Pleochroism
-
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.534-1.5401.665-1.712
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
-99990.036-0.042
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
Aids in digestion and soothes the stomach
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Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Emotional Healing