Origin
Brazil, Colombia, Southern and central Africa
Australia
Color
Greenish, Blue, Colorless, White, Green
Blue, Green, Greenish, Black
Streak
White
Grey, gray
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.08-3.124.00-4.62
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Conchoidal, Uneven
Cleavage
{010} Perfect
Indistinct parting on [111]
Mohs Hardness
7.57.5-8
2
10
👆🏻
Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous
Pleochroism
Weak: colorless-(greenish) yellow
-
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.650-1.6771.790-1.818
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
cubic
Birefringence
0.019-0.025-9999
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
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-
Respiratory
Good
Aids in digestion and soothes the stomach
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Protection
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Harmony