Astrology
Origin
Southern and central Africa
Southern and central Africa
Color
White
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Not Available
Not Available
For which Rashi?
Gemini
Not Available
Planet
Not Available
Not Available
Element of Planets
Water
Not Available
Energy
Not Available
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Neptune, Tiamat
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Birthstone
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.90
2.58-2.64
Fracture
Conchoidal
Not Available
Cleavage
3,1 basal
Not Available
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
Be3Al2SiO6
SiO 2Walter Schumann , Gemstones of the world (2001)
Optical Properties
Luster
Vitreous
Not Available
Pleochroism
Not Available
Not Available
Dispersion
0.01
26
None
Transparency
Transparent
TranslucentWalter Schumann
Refractive Index
1.562-1.615
1.530-1.540
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Not Available
Birefringence
0.003-0.010
0.004
Clarity
Transparent
TranslucentWalter Schumann
Benefits
Physical
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
