Origin
Southern and central Africa
Czech
Color
Black, Brownish, Brown
Brownish, Black, Colorless, White, gray, Blue, Green
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
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
4.5-4.86.46-6.57
1
7.18
👆🏻
Fracture
Uneven
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
None, parting may develop along {111}
Good [110] and [021]
Mohs Hardness
5.53-3.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Adamantine, Vitreous, Resinous
Pleochroism
none.
-
Dispersion
0.040.06
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
2.08-2.161.803-2.078
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Orthorhombic
Birefringence
-99990.273
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Clarity