Origin
Southern and central Africa
Canada, Russia, Brazil
Color
Blue
Brown, Red, Yellow, Violet
Streak
Blue
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
-
H₂SO₄
Durability
-
-
Specific Gravity
3.252.74-3.00
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
Imperfect in one direction
Distinct on {0001} imperfect on {11 2 0}
Mohs Hardness
5-5.55-5.5
2
10
👆🏻
Chemical Composition
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Luster
Vitreous
Vitreous
Pleochroism
Trichroic
Weak: O= colorless
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent
Translucent
Refractive Index
1.607-1.6721.591-1.633
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Trigonal
Birefringence
0.0650.003-0.010
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Self-Love