Origin
Sri Lanka, India, Brazil
Mexico, Thailand, Italy, Austria
Color
Green, Brown, Colorless, gray, Yellow
Green, Brown, Colorless, Greenish, gray, Yellow, White
Streak
Brownish, 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
-
Soluble
Durability
-
-
Specific Gravity
3.55-3.733.30-3.50
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
none
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
7-7.55
2
10
👆🏻
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Greasy, Vitreous
Vitreous, Adamantine, Silky
Pleochroism
None
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.730-1.7601.614-1.636
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Orthorhombic
Birefringence
0.0200.022
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
Helps in digestion and alleviates indigestion
-
Digestive
-
-
Psychology
Abundance
Emotional Healing
Healing
Physical healing
Emotional healing
Qualities Associated
Abundance
Inner Peace