Origin
Southern and central Africa
Brazil, Colombia, Southern and central Africa
Color
Blue, Grey
Greenish, Blue, Colorless, White, Green
Streak
-
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
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-
How to Wear?
Finger
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-
Ring Metal
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Deities
-
-
Not to wear with
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-
Powers
-
-
Birthstone
Planetary
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Talisman
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-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.58-2.643.08-3.12
1
7.18
👆🏻
Fracture
-
ConchoidalWalter Schumann
Cleavage
-
{010} Perfect
Mohs Hardness
77.5
2
10
👆🏻
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous
Pleochroism
-
Weak: colorless-(greenish) yellow
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.534-1.5401.650-1.677
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
-99990.019-0.025
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
Aids in digestion and soothes the stomach
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Respiratory
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Good
Reproductive
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-
Digestive
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Psychology
Protection
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Communication