Origin
Sri Lanka
Colombia, Origins: Congo
Color
Red, Blue, Green, Brown, Black
Red, Yellow, White, gray, Green, Colorless
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
Solubility
-
-
Durability
-
-
Specific Gravity
3.63-3.92.65-2.69
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
Indistinct
Perfect on {001}, good on {010}
Mohs Hardness
7.5-86-6.5
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
(Na,Ca)Al1-2Si3-2O8
Luster
Vitreous
Vitreous
Pleochroism
Absent
colorless.
Dispersion
0.020.70
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.770-1.7801.543-1.564
1
3.25
👆🏻
Optic Character
-
Biaxial/+
Crystal System
Isometric
Triclinic
Birefringence
-99990.007-0.011
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Creativity
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Vitality