Origin
Sri Lanka
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Red, Blue, Green, Brown, Black
Green, Brown, Colorless, Greenish, Yellow
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
3.63-3.93.25-3.45
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal, Uneven
Cleavage
Indistinct
Good on {110}
Mohs Hardness
7.5-86.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous
Pleochroism
Absent
X = colorless to green; Y = colorless
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.770-1.7801.660-1.685
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.012-0.017
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Creativity
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Self-worth