Origin
Italy, China
Brazil, Colombia, Southern and central Africa
Color
Colorless, White, Blue, gray
Greenish, Blue, Colorless, White, Green
Streak
White
White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.093.08-3.12
1
7.18
👆🏻
Fracture
Uneven
ConchoidalWalter Schumann
Cleavage
Perfect on {100} and {010}, imperfect on {101}
{010} Perfect
Mohs Hardness
87.5
2
10
👆🏻
Chemical Composition
CaAl2Si2O7(OH)2.H2O
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
Weak
Weak: colorless-(greenish) yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.672-1.6761.650-1.677
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
0.019-0.0210.019-0.025
0
0.296
👆🏻
Clarity
-
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
-
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
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Communication