Origin
USA, Southern and central Africa, China, India, Italy
Sri Lanka
Color
White, Yellow
Blue
Streak
-
-
For which Rashi?
Gemini
Sagittarius, Scorpio
Planet
Saturn
Pluto
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Hephaestus
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.44-2.623.65-4.55
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Indiscernible
None, but may exhibit slight parting
Mohs Hardness
2.5-5.57.5-8
2
10
👆🏻
Chemical Composition
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Luster
Vitreous, Greasy, Silky
Vitreous
Pleochroism
-
-
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.560-1.5711.735-1.790
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Isometric
Birefringence
0.008-0.014-9999
0
0.296
👆🏻
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Aids in mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Empowerment
Healing
Emotional healing
-
Qualities Associated
Protection
Transformation