Origin
-
Southern and central Africa
Color
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Blue, Green, Colorless
Streak
Blue, White
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
Gelatinises in acids
-
Durability
-
-
Specific Gravity
2.4-2.52.64-2.70
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
-
Cleavage
Distinct on {110}
{010} Perfect
Mohs Hardness
5-6-9999
2
10
👆🏻
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
None
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
-
Transparent
Refractive Index
1.501.560-1.640
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
-
Birefringence
-99990.054-0.075
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Hope
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Transformation