Origin
Southern and central Africa
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Color
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Black, Blue, Yellow, Green
Streak
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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
3.62-4.333.28-3.44
1
7.18
👆🏻
Fracture
Uneven
Uneven, Splintery
Cleavage
Indiscernible
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
7-7.55.0-6.0
2
10
👆🏻
Chemical Composition
Mg 3Al 2(SiO 4) 3 -Mn2+3Al 2(SiO 4) 3Gemdat.org , Management Team (2012)
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
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Vitreous, Silky
Pleochroism
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X = blue
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
TransparentGemdat.org
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Refractive Index
1.730-1.8201.680-1.698
1
3.25
👆🏻
Optic Character
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Crystal System
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monoclinic
Birefringence
-99990.005-0.008
0
0.296
👆🏻
Clarity
TransparentGemdat.org
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
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Good
Reproductive
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Digestive
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Psychology
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Empowerment
Healing
Emotional healing
Emotional healing
Qualities Associated
Love
Clear Thinking