Origin
India, Canada, Brazil
  
USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia
  
Color
Colorless, Reddish, White, pink, Green, Yellow, Violet, White, pink, Green, Yellow, Violet, White, Colorless, Blue, Green, Brown, Yellow, pink, Violet, White, pink, Green, Yellow, Violet
  
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
  
Streak
White
  
White
  
For which Rashi?
Not Available
  
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
Water
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Receptive
  
Deities
Not Available
  
Diana
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Love, Courage
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble in common solvents
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.50
  
2.65
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Perfect on (001)
  
Indiscernible
  
Mohs Hardness
4.5-5
  
7
  
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
SiO2
  
Luster
Vitreous, Pearly
  
Vitreous
  
Pleochroism
Dichroic (colorless)
  
None
  
Dispersion
Not Available
  
Transparency
Transparent, Translucent
  
Transparent, Transparent to translucent
  
Refractive Index
1.530-1.543
  
1.544-1.553
  
Optic Character
Uniaxial/-
  
Not Available
  
Crystal System
tetragonal
  
Trigonal
  
Birefringence
0.000-0.003
  
0.009
  
Clarity
Transparent
  
Transparent
  
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