Origin
Southern and central Africa
Brazil
Color
Brown, Black, Blue
Colorless, 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
-
-
Durability
-
-
Specific Gravity
2.653.14-3.16
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
Conchoidal
Cleavage
None
Perfect on {010} and {110}
Mohs Hardness
-99995-5.5
2
10
👆🏻
Chemical Composition
SiO 2Ulrich Henn and Claudio C.
MgF 2Ulrich Henn and Claudio C.
Luster
-
Vitreous
Pleochroism
Definite: brown reddish-brownWalter Schumann
-
Dispersion
0.010.03
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.544-1.5531.378-1.390
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
tetragonal
Birefringence
0.0090.012
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Improves digestion and metabolism
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Protection
-
Healing
Emotional healing
-
Qualities Associated
Protection
Emotional Healing