Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Mexico
Color
Blue, Violet, Colorless, Red, Green, Brown
Blue, Black
Streak
White
Grey, Black, gray
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
-
Flexible
Solubility
-
-
Durability
-
-
Specific Gravity
3.64-3.664.6-4.76
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
-
Cleavage
None, but may exhibit slight parting
Perfect on {0001}
Mohs Hardness
8-9999
2
10
👆🏻
Chemical Composition
MgAl2O4
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Resinous
Pleochroism
Absent
Marked
Dispersion
0.020.08
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to translucent
OpaqueAnthony et al
Refractive Index
1.731.45-2.62
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Hexagonal
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueAnthony et al
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Revitalization
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Manifestation