Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Southern and central Africa
Color
Blue, Violet, Colorless, Red, Green, Brown
Colorless, 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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.64-3.662.91
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
None, but may exhibit slight parting
None
Mohs Hardness
8-9999
2
10
👆🏻
Chemical Composition
MgAl2O4
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Absent
Weak: colorless light gray bluish grayAnthony et al
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent
Refractive Index
1.731.634-1.656
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Revitalization
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Creativity