Origin
Southern and central Africa
Afghanistan, Southern and central Africa
Color
Black, Brownish, Brown
Blue, Greenish, Violet
Streak
Brown
Blue, 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
-
Soluble
Durability
-
-
Specific Gravity
4.5-4.82.75
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
None, parting may develop along {111}
Imperfect on {110}
Mohs Hardness
5.55.5
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Luster
-
Vitreous
Pleochroism
none.
-
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.500
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Clarity