Origin
Southern and central Africa
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Blue, Grey
Colorless, Yellow, pink, Red
Streak
-
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
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-
Ring Metal
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Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
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-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.58-2.642.90-2.98
1
7.18
👆🏻
Fracture
-
Conchoidal, ConchoidalWalter Schumann
Cleavage
-
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
77.5-8
2
10
👆🏻
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous
Pleochroism
-
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.534-1.5401.650-1.695
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal
Birefringence
-99990.016
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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-
Cardiovascular
Aids in digestion and soothes the stomach
Supports heart health
Respiratory
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Excellent
Reproductive
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-
Digestive
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-
Psychology
Protection
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Spiritual Activation