Origin
Southern and central Africa
USA
Color
Black, Brownish, Brown
Brown, Red, Black, Brownish
Streak
Brown
Reddish, 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
4.5-4.85.05-5.22
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
None, parting may develop along {111}
None
Mohs Hardness
5.55.5-6
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
-
-
Pleochroism
none.
-
Dispersion
0.040.19
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
2.08-2.16-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
-
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Creativity
Healing
Emotional healing
-
Qualities Associated
Protection
Grounding