Origin
Southern and central Africa
Kazakhstan
Color
Brown, Black, Blue
Green, Blue
Streak
-
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
-
Soluble
Durability
-
-
Specific Gravity
2.653.25-3.35
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Conchoidal, ConchoidalWalter Schumann
Cleavage
None
Perfect in three directions
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous
Pleochroism
Definite: brown reddish-brownWalter Schumann
Weak; dark emerald green
Dispersion
0.010.04
0.005
1
👆🏻
Transparency
Transparent, Translucent
TranslucentHerve Nicolas Lazzarelli
Refractive Index
1.544-1.5531.644-1.720
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Trigonal
Birefringence
0.0090.051-0.053
0
0.296
👆🏻
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
Physical
Neurological
Improves digestion and metabolism
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Excellent
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Emotional Healing