Origin
Italy, China
USA
Color
Colorless, White, Blue, gray
Colorless, White, Yellow
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
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.092.79-2.87
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
Perfect on {100} and {010}, imperfect on {101}
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Mohs Hardness
85.5-6
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous, Adamantine, Pearly
Pleochroism
Weak
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.672-1.6761.552-1.562
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.019-0.0210.009
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
-
Creativity
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Harmony