Origin
-
-
Color
Brown, Blue, Green, Yellow, White
Blue, Green
Streak
White
Blue
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
3.32-3.433.80-4.15
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Poor on {110} and {100} very poor on {001}
perfect along [010] and [100]
Mohs Hardness
6-73.5-4
2
10
👆🏻
Chemical Composition
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Resinous
Silky
Pleochroism
slight in colored varieties
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
-
Translucent
Refractive Index
1.703-1.7521.752-1.815
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Orthorhombic
Birefringence
0.004-0.0060.063
0
0.296
👆🏻
Clarity
-
Translucent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Transformation
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Communication