Origin
Brazil
Vietnam
Color
Blue
Yellow, Brown, White, orange
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
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.60-2.903.20-3.32
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal
Cleavage
Indistinct
Poor
Mohs Hardness
7.5-86-6.5
2
10
👆🏻
Chemical Composition
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
-
Vitreous
Pleochroism
Strong dichroism: blue to colourless\
pale golden yellow or deep golden yellow
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.560-1.6041.607-1.675
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
0.003-0.010-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Harmony
Healing
Emotional healing
Physical healing
Qualities Associated
Communication
Harmony