Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Brazil, Kenya, Madagascar, Southern and central Africa
Color
Blue, Violet, Colorless, Red, Green, Brown
Brown, Black
Streak
White
White
For which Rashi?
Sagittarius, Scorpio
Capricorn, Sagittarius
Planet
Pluto
Saturn
Element of Planets
-
Earth
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Hephaestus
Nerthus
Not to wear with
-
-
Powers
-
Protection
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.64-3.662.65
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal, ConchoidalWalter Schumann
Cleavage
None, but may exhibit slight parting
{0110} Indistinct
Mohs Hardness
87
2
10
👆🏻
Chemical Composition
MgAl2O4
SiO2
Luster
Vitreous
Vitreous
Pleochroism
Absent
None
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.731.544-1.553
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Hexagonal
Birefringence
-99990.009
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Opaque
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Revitalization
Grounding
Healing
Emotional healing
Physical healing
Qualities Associated
Vitality
Grounding