Origin
Southern and central Africa
Brazil
Color
Black, Brownish, Brown
Yellow, Brown, Black, Colorless, White, Brownish
Streak
Brown
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
Brittle
Solubility
-
Effervesces in hot HCl
Durability
-
-
Specific Gravity
4.5-4.82.92-3.12
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None, parting may develop along {111}
[10 1 1] perfect
Mohs Hardness
5.53.5-4.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous
Pleochroism
none.
-
Dispersion
0.040.03
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
2.08-2.161.509-1.720
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Trigonal
Birefringence
-99990.191
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Vitality
Calming
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Relaxation