Origin
Southern and central Africa
Mexico
Color
Colorless, Greenish, Green, gray, Yellow
Yellow, yellowish orange
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
3.21-3.383.98-4.04
1
7.18
👆🏻
Fracture
Irregular/uneven, Uneven
Conchoidal
Cleavage
Perfect on {001}
Imperfect, poor one {100}
Mohs Hardness
6-74.5-5
2
10
👆🏻
Chemical Composition
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
Pleochroism
StrongArthur Thomas
Colorless
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.670-1.7341.702-1.740
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
monoclinic
Birefringence
0.006-0.0110.060
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Creativity
Healing
Emotional healing
-
Qualities Associated
Empathy
Optimism