Origin
Southern and central Africa
Southern and central Africa
Color
Black, Brownish, Brown
White, Violet, Blue, Yellow, Brown, Brownish, Colorless, Greenish
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
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.5-4.82.50
1
7.18
👆🏻
Fracture
Uneven
Uneven, Conchoidal
Cleavage
None, parting may develop along {111}
Distinct on {100} and {110}
Mohs Hardness
5.55.5-6
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Luster
-
Vitreous, Pearly, Resinous
Pleochroism
none.
-
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
2.08-2.161.540-1.550
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
tetragonal
Birefringence
-99990.004-0.008
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
-
Reproductive
-
-
Digestive
-
-
Psychology
Vitality
Optimism
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Spiritual Growth