Origin
Southern and central Africa
Mexico, Thailand, Italy, Austria
Color
Brown, Black, Blue
Green, Brown, Colorless, Greenish, gray, Yellow, White
Streak
-
White
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
2.653.30-3.50
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
None
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Adamantine, Silky
Pleochroism
Definite: brown reddish-brownWalter Schumann
-
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.544-1.5531.614-1.636
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
0.0090.022
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Improves digestion and metabolism
-
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Protection
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Protection
Inner Peace