Origin
-
Brazil, Colombia, Southern and central Africa
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Greenish, Blue, Colorless, White, Green
Streak
Blue, White
White
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
-
Solubility
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.53.08-3.12
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
ConchoidalWalter Schumann
Cleavage
Distinct on {110}
{010} Perfect
Mohs Hardness
5-67.5
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
None
Weak: colorless-(greenish) yellow
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.501.650-1.677
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
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
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Communication