1 Astrology
1.1 Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Not Available, Mexico, Germany
1.2 Color
Blue, Green, Brownish, Greenish, Colorless, gray
Blue
1.3 Streak
1.4 For which Rashi?
1.1 Planet
1.3 Element of Planets
1.5 How to Wear?
1.5.1 Finger
Not Available
Not Available
1.5.2 Ring Metal
Not Available
Not Available
1.7 Energy
Not Available
Receptive, Projective
1.9 Deities
1.11 Not to wear with
Not Available
Not Available
1.13 Powers
1.15 Birthstone
1.15.1 Planetary
Not Available
Not Available
1.16.1 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.3 Solubility
Not Available
Not Available
2.5 Durability
Not Available
Not Available
2.6 Specific Gravity
3.20-3.26Not Available
1
7.18
3.5 Fracture
3.6 Cleavage
{010} perfect
Not Available
3.7 Mohs Hardness
3.11 Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Not Available
4 Optical Properties
4.1 Luster
Vitreous, Subadamantine, Silky
Not Available
4.2 Pleochroism
Colourless to pale brown to yellow
Not Available
4.3 Dispersion
5.4 Transparency
Transparent, Translucent
Not Available
5.5 Refractive Index
1.653-1.685Not Available
1
3.25
5.8 Optic Character
Not Available
Not Available
5.9 Crystal System
Orthorhombic
Orthorhombic
5.10 Birefringence
0.020-0.022Not Available
0
0.296
5.14 Clarity
Transparent
Not Available
6 Benefits
6.1 Physical
6.1.1 Neurological
Not Available
Not Available
6.1.2 Cardiovascular
Not Available
Not Available
6.1.3 Respiratory
Not Available
Not Available
6.1.4 Reproductive
Not Available
Not Available
6.1.5 Digestive
Not Available
Not Available
6.2 Psychology
Not Available
Not Available
6.3 Healing
Not Available
Not Available
6.4 Qualities Associated
Not Available
Not Available