Origin
India, Southern and central Africa, Madagascar
USA
Color
Black, Brownish, Greenish
Yellow, Red, Green, Colorless, orange
Streak
Brown
Yellow, yellowish orange
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
3.18-3.225.50-5.90
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Conchoidal
Cleavage
{1011} Indistinct
On {10 1 0}, perfect; parting on {000 1 }
Mohs Hardness
-99994
2
10
👆🏻
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Subadamantine, Resinous
Pleochroism
Very strong: yellow-brown pale yellow
Very weak
Dispersion
0.020.16
0.005
1
👆🏻
Transparency
Transparent, Translucent
TransparentRobert C. Kammerling
Refractive Index
1.635-1.6722.013-2.029
1
3.25
👆🏻
Optic Character
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Crystal System
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Hexagonal
Birefringence
0.0250.016
0
0.296
👆🏻
Clarity
Transparent
TransparentRobert C. Kammerling
Physical
Neurological
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Cardiovascular
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Respiratory
Good
Good
Reproductive
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Digestive
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Psychology
Protection
Passion
Healing
Emotional healing
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Qualities Associated
Protection & Grounding
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