1 Astrology
1.1 Origin
India
Kenya, Southern and central Africa
1.2 Color
White, Red, Green, Blue, Brown, Yellow, Brown, Black, pink, Blue, Green, Yellow, Brown, Yellow, Brown, orange
Green, Brown, Yellow, Red
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Earth, Air, Water
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
Healing, Protection, Love
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
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
1.05-1.103.55-3.70
1
7.18
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Gemstones (2009)
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
[C,H,O]
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
3.3 Dispersion
1.13 Transparency
Transparent, Translucent
Transparent
1.14 Refractive Index
1.539-1.5451.710-1.735
1
3.25
1.15 Optic Character
1.16 Crystal System
1.17 Birefringence
Not Available0.012-0.033
0
0.296
1.18 Clarity
2 Benefits
2.1 Physical
2.1.1 Neurological
Not Available
Not Available
2.1.2 Cardiovascular
Not Available
Not Available
2.1.3 Respiratory
Not Available
Not Available
2.1.4 Reproductive
Not Available
Not Available
2.1.5 Digestive
Not Available
Not Available
2.2 Psychology
Not Available
Not Available
2.3 Healing
Not Available
Not Available
2.4 Qualities Associated
Not Available
Not Available