Origin
Sri Lanka
Southern and central Africa
Color
Red, Blue, Green, Brown, Black
Colorless, White, gray, Brown, pink
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
3.63-3.93.05-3.08
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Irregular, Conchoidal
Cleavage
Indistinct
None
Mohs Hardness
7.5-86.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous
Pleochroism
Absent
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Semitransparent
Refractive Index
1.770-1.780-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentAnthony et al
Physical
Neurological
-
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Creativity
Empathy
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Emotional Healing