Origin
Italy
Sri Lanka
Color
Blue, Green
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
Blue, Green
White, Brownish
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
Effervesces in cold
insoluble
Durability
-
-
Specific Gravity
4-4.26.86-7.03
1
7.18
👆🏻
Fracture
Splintery
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
Perfect on {100} and {010}
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
46-7
2
10
👆🏻
Chemical Composition
CuZn(CO3)(OH)2
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Silky, Vitreous
Adamantine, Greasy
Pleochroism
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
Pleochroic haloes have been observed. Dichroic in yellow
Dispersion
0.030.07
0.005
1
👆🏻
Transparency
-
Transparent, Translucent
Refractive Index
1.672-1.6881.990-2.105
1
3.25
👆🏻
Optic Character
-
-
Crystal System
monoclinic
tetragonal
Birefringence
0.139-0.1430.096-0.098
0
0.296
👆🏻
Clarity
-
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Poor
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Emotional Healing
Focus
Healing
Emotional healing
Emotional healing
Qualities Associated
Communication
Manifestation