1 Astrology
1.1 Origin
Kenya, Southern and central Africa
Tanzania, Yellow, green, Yellow, green
1.2 Color
Green, Brown, Yellow, Red
Blue
1.3 Streak
Not Available
White, Colorless
1.4 For which Rashi?
Not Available
Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Air, Water, Earth
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
Not Available
Receptive, Projective
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Love, Healing
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
2.4 Specific Gravity
2.5 Fracture
Gemstones (2009)
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
2.6 Cleavage
Not Available
Perfect {010}, imperfect {100}
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Ca2Al3(SiO4)3(OH)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Present
3.3 Dispersion
3.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
1.710-1.7351.685-1.707
1
3.25
3.6 Optic Character
3.7 Crystal System
Not Available
Orthorhombic
3.8 Birefringence
0.012-0.0330.006-0.018
0
0.296
3.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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