Origin
Mexico
Southern and central Africa
Color
Blue, Black
Black, Brownish, Brown
Streak
Grey, Black, gray
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
Flexible
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.6-4.764.5-4.8
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Perfect on {0001}
None, parting may develop along {111}
Mohs Hardness
-99995.5
2
10
👆🏻
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Fe++Cr2O4
Luster
Resinous
-
Pleochroism
Marked
none.
Dispersion
0.080.04
0.005
1
👆🏻
Transparency
OpaqueAnthony et al
-
Refractive Index
1.45-2.622.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Hexagonal
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
OpaqueAnthony et al
-
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Protection