Origin
Southern and central Africa
Russia
Color
Black, Brownish, Brown
Pale pink, Red, White, pink, 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
-
-
Durability
-
-
Specific Gravity
4.5-4.82.30-2.60
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
None, parting may develop along {111}
{111} Imperfect
Mohs Hardness
5.55.5-6
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
-
Pleochroism
none.
ModerateArthur Thomas
Dispersion
0.040.01
0.005
1
👆🏻
Transparency
-
OpaqueHerve Nicolas Lazzarelli
Refractive Index
2.08-2.161.494-1.504
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
tetragonal
Birefringence
-99990.008
0
0.296
👆🏻
Clarity
-
OpaqueHerve Nicolas Lazzarelli
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Emotional Healing