Origin
Italy, China
Afghanistan, Southern and central Africa
Color
Colorless, White, Blue, gray
Grey, White, Colorless, gray, Pale pink, Blue
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
-
Readily soluble in HF
Durability
-
-
Specific Gravity
3.092.86-2.94
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
Perfect on {100} and {010}, imperfect on {101}
None observed
Mohs Hardness
86.5-7
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Vitreous, Greasy
Pleochroism
Weak
-
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.672-1.6761.517-1.525
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.019-0.021-9999
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
-
Healing
Emotional healing
-
Qualities Associated
-
Harmony