Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Mexico, Thailand, Italy, Austria
Color
Blue, Violet, Colorless, Red, Green, Brown
Green, Brown, Colorless, Greenish, gray, Yellow, White
Streak
White
White
For which Rashi?
Sagittarius, Scorpio
-
Planet
Pluto
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Hephaestus
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
Soluble
Durability
-
-
Specific Gravity
3.64-3.663.30-3.50
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
None, but may exhibit slight parting
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
85
2
10
👆🏻
Chemical Composition
MgAl2O4
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Adamantine, Silky
Pleochroism
Absent
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.731.614-1.636
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.022
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Revitalization
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Inner Peace