Origin
USA, Mexico, Tanzania, Brazil, Pakistan, Afghanistan, Origins: USA
Brazil
Color
Green, Reddish, Brown, Yellow, Colorless, Blue, Violet, Grey
Blue, Greenish
Streak
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.363.31
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Good on {100}
{110} Good
Mohs Hardness
6.5-75.5-6
2
10
👆🏻
Chemical Composition
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
(Fe2+ ,Mg)Al 2(PO 4) 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
-
Pleochroism
Strong
Colorless blueAnthony et al
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.656-1.7041.639-1.680
1
3.25
👆🏻
Optic Character
Biaxial/+
-
Crystal System
Triclinic
-
Birefringence
0.009-0.0120.041
0
0.296
👆🏻
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Intuition & Communication