Origin
Kenya, Southern and central Africa
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Color
Green, Brown, Yellow, Red
Blue, gray, Black
Streak
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Blue
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
3.55-3.703-3.15
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
Perfect
Good on [110] and on [001]
Mohs Hardness
4-76.0-6.5
2
10
👆🏻
Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
[ ]Na2(Mg3Al2)Si8O22(OH)2
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Strong
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.710-1.7351.606-1.637
1
3.25
👆🏻
Optic Character
Biaxial/+
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Crystal System
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monoclinic
Birefringence
0.012-0.033-9999
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Cardiovascular
Supports heart health
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Respiratory
Good
Good
Reproductive
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Digestive
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Psychology
Intuition
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Tranquility
Peace