Origin
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA
Color
Green, Brown, Colorless, Greenish, Yellow
Red, Brown, Brownish, Black
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.25-3.453.95-4.30
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal
Cleavage
Good on {110}
none
Mohs Hardness
6.57-7.5
2
10
👆🏻
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
X = colorless to green; Y = colorless
None
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.660-1.6851.770-1.820
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
cubic
Birefringence
0.012-0.017-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
Supports reproductive health
Digestive
-
-
Psychology
Harmony
Strength
Healing
Emotional healing
Emotional healing
Qualities Associated
Self-worth
Devotion