Origin
Italy, China
Tanzania, Sri Lanka, China
Color
Colorless, White, Blue, gray
Colorless
Streak
White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.093.60-3.61
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Perfect on {100} and {010}, imperfect on {101}
Imperfect/fair/absent
Mohs Hardness
88-8.5
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
Weak
Weak
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.672-1.6761.70-1.73
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.019-0.0210.055
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
Transformation
Healing
Emotional healing
Physical healing
Qualities Associated
-
Spiritual Growth