Origin
Southern and central Africa
Southern and central Africa
Color
Brown, Colorless, Green
Black, Brownish, Brown
Streak
-
Brown
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
3.14-3.254.5-4.8
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Perfect
None, parting may develop along {111}
Mohs Hardness
6-75.5
2
10
👆🏻
Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009)
Fe++Cr2O4
Luster
-
-
Pleochroism
DistinctArthur Thomas
none.
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.658-1.6782.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
Aids in digestion and nutrient absorption
-
Psychology
Focus
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Protection