Origin
Southern and central Africa
Sri Lanka
Color
Blue, Colorless, White
Blue
Streak
White
-
For which Rashi?
Gemini, Virgo
Sagittarius, Scorpio
Planet
-
Pluto
Element of Planets
Earth
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Quan Yin
Hephaestus
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.45-2.583.65-4.55
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
None
None, but may exhibit slight parting
Mohs Hardness
3-3.57.5-8
2
10
👆🏻
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Luster
Vitreous
Vitreous
Pleochroism
-
-
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.583-1.6081.735-1.790
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.019-9999
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Calming
Empowerment
Healing
Emotional healing
-
Qualities Associated
Calming
Transformation