Origin
India, Southern and central Africa, Madagascar
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Color
Black, Brownish, Greenish
Black, Blue, Yellow, Green
Streak
Brown
Grey, Greenish, Brown
For which Rashi?
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Planet
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Element of Planets
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
-
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Birthstone
Planetary
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Talisman
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Tenacity
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Brittle
Solubility
-
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Durability
-
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Specific Gravity
3.18-3.223.28-3.44
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Splintery
Cleavage
{1011} Indistinct
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
-99995.0-6.0
2
10
👆🏻
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Vitreous
Vitreous, Silky
Pleochroism
Very strong: yellow-brown pale yellow
X = blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
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Refractive Index
1.635-1.6721.680-1.698
1
3.25
👆🏻
Optic Character
-
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Crystal System
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monoclinic
Birefringence
0.0250.005-0.008
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
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Supports heart health
Respiratory
Good
Good
Reproductive
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Digestive
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Psychology
Protection
Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection & Grounding
Clear Thinking