Origin
Southern and central Africa
Southern and central Africa
Color
Red, Brown, Black
Black, Brownish, Brown
Streak
Brownish, Red
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
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.154.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Fair in four directions forming octahedrons
None, parting may develop along {111}
Mohs Hardness
3.5-45.5
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe++Cr2O4
Luster
Adamantine
-
Pleochroism
visible
none.
Dispersion
0.050.04
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
-
Refractive Index
2.8492.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
-
Physical
Neurological
-
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Protection