Astrology
Origin
Afghanistan
China, Kenya, Russia, Sri Lanka, Zambia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, pink
Red, pink, Black, orange
Streak
White
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
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
insoluble in water
Durability
Not Available
Not Available
Specific Gravity
2.90-3.14
3.62-3.87
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Imperfect; basal
None
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Optical Properties
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Moderate dichroic
None
Dispersion
Not Available
0.02
16
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.598-1.620
1.720-1.756
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
cubic
Birefringence
0.008-0.011
Not Available
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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
