Origin
Southern and central Africa
USA
Color
Colorless, Greenish, Green, gray, Yellow
Yellow, White, Brown, Red
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
3.21-3.383.177
1
7.18
👆🏻
Fracture
Irregular/uneven, Uneven
Uneven, Conchoidal
Cleavage
Perfect on {001}
{???} Distinct
Mohs Hardness
6-76-6.5
2
10
👆🏻
Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
StrongArthur Thomas
Pale yellow very pale yellow colorlessAnthony et al
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
Transparent
Refractive Index
1.670-1.7341.563-1.593
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
-
Birefringence
0.006-0.011-9999
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Confidence
Healing
Emotional healing
Emotional healing
Qualities Associated
Empathy
Balance