Origin
-
Southern and central Africa
Color
Blue, Green
Violet, Blue, Yellow, Brown, White, Colorless
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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.80-4.153.1-3.25
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
perfect along [010] and [100]
Indistinct
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
Luster
Silky
Vitreous, Resinous
Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
Weak to strong if coloreD
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
Translucent
Transparent
Refractive Index
1.752-1.8151.631-1.650
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.063-9999
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Clarity