Origin
Southern and central Africa
Canada
Color
Colorless, Greenish, Green, gray, Yellow
White, Reddish, gray, Brown, Brownish
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
3.21-3.382.55-2.65
1
7.18
👆🏻
Fracture
Irregular/uneven, Uneven
Subconchoidal, Conchoidal
Cleavage
Perfect on {001}
[1010] Poor
Mohs Hardness
6-75-6
2
10
👆🏻
Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Greasy
Pleochroism
StrongArthur Thomas
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.670-1.7341.529-1.547
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Hexagonal
Birefringence
0.006-0.0110.003-0.004
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
-
Healing
Emotional healing
-
Qualities Associated
Empathy
Clarity