Origin
Southern and central Africa
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Color
Black, Brownish, Brown
Black, Blue, Yellow, Green
Streak
Brown
Grey, Greenish, 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
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.5-4.83.28-3.44
1
7.18
👆🏻
Fracture
Uneven
Uneven, Splintery
Cleavage
None, parting may develop along {111}
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
5.55.0-6.0
2
10
👆🏻
Chemical Composition
Fe++Cr2O4
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
-
Vitreous, Silky
Pleochroism
none.
X = blue
Dispersion
0.040.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
2.08-2.161.680-1.698
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
monoclinic
Birefringence
-99990.005-0.008
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
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Supports heart health
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
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Psychology
Vitality
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Clear Thinking