Origin
Southern and central Africa
Tanzania, Sri Lanka, China
Color
Colorless, Brown, Greenish, gray
Colorless
Streak
White
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
-
-
Specific Gravity
2.62-2.673.60-3.61
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
From the Greek, oligos and kasein, little cleavage.
Imperfect/fair/absent
Mohs Hardness
6-6.58-8.5
2
10
👆🏻
Chemical Composition
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous
Pleochroism
-
Weak
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.538-1.5501.70-1.73
1
3.25
👆🏻
Optic Character
-
-
Crystal System
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Hexagonal
Birefringence
0.0100.055
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
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Respiratory
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Good
Reproductive
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Digestive
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Psychology
Harmony
Transformation
Healing
Emotional healing
Physical healing
Qualities Associated
Harmony
Spiritual Growth