Origin
Russia
Sri Lanka, Burma, USA, Russia
Color
Colorless, Brownish
Yellow, Brown, pink, Colorless
Streak
White
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
Brittle
-
Solubility
Nearly insoluble in HCl and HNO3
-
Durability
-
-
Specific Gravity
2.973.46-3.50
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Distinct on {010}
Perfect
Mohs Hardness
66-7
2
10
👆🏻
Chemical Composition
-
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Vitreous, Pearly
-
Pleochroism
(x): colorless. (y): colorless. (z): colorless.
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.6071.665-1.712
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
-99990.036-0.042
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
Intuition
Healing
Physical healing
Emotional healing
Qualities Associated
Protection
Emotional Healing