Origin
Southern and central Africa
Italy
Color
Colorless, gray, White
Blue, Green
Streak
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
Solubility
-
Effervesces in cold
Durability
-
-
Specific Gravity
2.40-2.424-4.2
1
7.18
👆🏻
Fracture
-
Splintery
Cleavage
{010} Perfect, {001} Distinct
Perfect on {100} and {010}
Mohs Hardness
4.54
2
10
👆🏻
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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
Transparent
-
Refractive Index
1.584-1.6151.672-1.688
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
monoclinic
Birefringence
0.028-0.0300.139-0.143
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Imagination
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Harmony
Communication