Origin
Sri Lanka
Southern and central Africa
Color
Red, Brown, Black
Colorless, Brown, Greenish, gray
Streak
Brown
White
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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Solubility
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Durability
-
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Specific Gravity
2.97-3.142.62-2.67
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven
Cleavage
{1011} Indistinct
From the Greek, oligos and kasein, little cleavage.
Mohs Hardness
-99996-6.5
2
10
👆🏻
Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous
Pleochroism
Pale yellow colorlessAnthony et al
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Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.614-1.6661.538-1.550
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
-
Birefringence
0.014-0.0320.010
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Supports heart health
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Respiratory
Good
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Reproductive
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Digestive
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Psychology
Empowerment
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Empowerment
Harmony