1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa
1.2 Color
Yellow, Green, Blue, Violet
Brown, Black
1.3 Streak
Not Available
Not Available
1.4 For which Rashi?
Not Available
Cancer, Leo, Cancer, Leo, Cancer, Leo
1.5 Planet
Not Available
Mars, Saturn
1.6 Element of Planets
Not Available
Not Available
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
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
Not Available
Not Available
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
1.2 Specific Gravity
3.90-4.05Not Available
1
7.18
1.6 Fracture
Not Available
Not Available
1.7 Cleavage
Not Available
Not Available
1.8 Mohs Hardness
1.9 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Not Available
2 Optical Properties
2.1 Luster
Not Available
Not Available
2.2 Pleochroism
Not Available
Not Available
2.3 Dispersion
2.4 Transparency
Transparent, Translucent
Not Available
2.5 Refractive Index
1.758-1.780Not Available
1
3.25
2.6 Optic Character
Not Available
Not Available
2.7 Crystal System
Not Available
Not Available
2.8 Birefringence
0.007-0.010Not Available
0
0.296
2.9 Clarity
Transparent
Not Available
3 Benefits
3.1 Physical
3.1.1 Neurological
Not Available
Not Available
3.1.2 Cardiovascular
Not Available
Not Available
3.1.3 Respiratory
Not Available
Not Available
3.1.4 Reproductive
Not Available
Not Available
3.1.5 Digestive
Not Available
Not Available
3.2 Psychology
Not Available
Not Available
3.3 Healing
Not Available
Not Available
3.4 Qualities Associated
Not Available
Not Available