Origin
Afghanistan, Southern and central Africa
Italy
Color
Blue, Greenish, Violet
Blue, Green
Streak
Blue, White
Blue, Green
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
Brittle
Solubility
Soluble
Effervesces in cold
Durability
-
-
Specific Gravity
2.754-4.2
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Splintery
Cleavage
Imperfect on {110}
Perfect on {100} and {010}
Mohs Hardness
5.54
2
10
👆🏻
Chemical Composition
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
CuZn(CO3)(OH)2
Luster
Vitreous
Silky, Vitreous
Pleochroism
-
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
Dispersion
0.020.03
0.005
1
👆🏻
Transparency
-
-
Refractive Index
1.5001.672-1.688
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
monoclinic
Birefringence
-99990.139-0.143
0
0.296
👆🏻
Clarity
-
-
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Communication
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Clarity
Communication