Origin
Brazil
Canada
Color
Blue
Yellow, Brown, Red, White, Green, Reddish, Black
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
2.60-2.903.89-4.18
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Uneven
Cleavage
Indistinct
{0001}, {11 2 0} imperfect
Mohs Hardness
7.5-85.5
2
10
👆🏻
Chemical Composition
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Resinous
Pleochroism
Strong dichroism: blue to colourless\
-
Dispersion
0.010.17
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.560-1.6041.687-1.723
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal
Birefringence
0.003-0.0100.028-0.030
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Optimism
Healing
Emotional healing
-
Qualities Associated
Communication
Transformation