Origin
Italy
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Color
Blue, Green
Brown
Streak
Blue, Green
Brownish, Red, Black
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
Effervesces in cold
-
Durability
-
-
Specific Gravity
4-4.25.2
1
7.18
👆🏻
Fracture
Splintery
Subconchoidal, Conchoidal
Cleavage
Perfect on {100} and {010}
Good in one direction
Mohs Hardness
46-6.5
2
10
👆🏻
Chemical Composition
CuZn(CO3)(OH)2
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Silky, Vitreous
Resinous
Pleochroism
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
-
Dispersion
0.030.03
0.005
1
👆🏻
Transparency
-
TransparentWalter Schumann
Refractive Index
1.672-1.6882.190-2.457
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
Orthorhombic
Birefringence
0.139-0.1430.083
0
0.296
👆🏻
Clarity
-
TransparentWalter Schumann
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Poor
-
Reproductive
-
-
Digestive
-
-
Psychology
Emotional Healing
Strength
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Balance