Origin
-
Southern and central Africa
Color
Blue, Green
White, Colorless, Blue, Red, Green, Yellow, Violet, Black
Streak
Blue
Colorless
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
3.80-4.153.03-3.18
1
7.18
👆🏻
Fracture
Uneven
Uneven, Irregular, Conchoidal
Cleavage
perfect along [010] and [100]
{???} Indistinct
Mohs Hardness
3.5-47-7.5
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Luster
Silky
Vitreous
Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
Very strong: pale yellow colorless
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Translucent
Transparent
Refractive Index
1.752-1.8151.614-1.666
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.0630.014-0.032
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Self-acceptance
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Self-Exploration