Origin
Sri Lanka, Burma, USA, Russia
Russia
Color
Yellow, Brown, pink, Colorless
Colorless, Brownish
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
3.46-3.502.97
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Perfect
Distinct on {010}
Mohs Hardness
6-76
2
10
👆🏻
Chemical Composition
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
-
Luster
-
Greasy, Vitreous, Pearly
Pleochroism
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
(x): colorless. (y): colorless. (z): colorless.
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.665-1.7121.607
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.036-0.042-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Intuition
-
Healing
Emotional healing
Physical healing
Qualities Associated
Emotional Healing
Protection