1 Astrology
1.1 Origin
Southern and central Africa
Canada
1.2 Color
Black, Brownish, Brown, Black, Brownish
Green
1.3 Streak
1.4 For which Rashi?
Not Available
Libra, Sagittarius, Taurus
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.5 Fracture
Uneven
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
2.6 Cleavage
None, parting may develop along {111}
3,1
2.7 Mohs Hardness
2.8 Chemical Composition
Fe++Cr2O4
SiO 2Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
none.
Very weak: light green pale greenWalter Schumann
3.3 Dispersion
3.4 Transparency
Not Available
Transparent, Translucent
3.5 Refractive Index
2.08-2.161.544-1.553
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
Not Available0.009
0
0.296
3.9 Clarity
Not Available
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available