Origin
Afghanistan, Italy
Southern and central Africa
Color
Blue, Colorless
Black, Brownish, Brown
Streak
White
Brown
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
-
-
Durability
-
-
Specific Gravity
2.55-2.654.5-4.8
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Perfect {10 1 0}
None, parting may develop along {111}
Mohs Hardness
5.5-65.5
2
10
👆🏻
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Fe++Cr2O4
Luster
Vitreous
-
Pleochroism
-
none.
Dispersion
0.020.04
0.005
1
👆🏻
Transparency
Transparent
-
Refractive Index
1.5232.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
Isometric
Birefringence
0.006-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Harmony
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Protection