Origin
-
Afghanistan, Southern and central Africa
Color
Blue, Green
Grey, White, Colorless, gray, Pale pink, Blue
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
-
Readily soluble in HF
Durability
-
-
Specific Gravity
3.80-4.152.86-2.94
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven
Cleavage
perfect along [010] and [100]
None observed
Mohs Hardness
3.5-46.5-7
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Luster
Silky
Vitreous, Greasy
Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
-
Dispersion
0.020.01
0.005
1
👆🏻
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.752-1.8151.517-1.525
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.063-9999
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
-
Healing
Emotional healing
-
Qualities Associated
Communication
Harmony