Origin
Zimbabwe
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Violet, White, gray, Blue, Brown, Black
Colorless, Yellow, pink, Red
For which Rashi?
Cancer, Sagittarius, Cancer, Sagittarius, Cancer, Sagittarius
Not Available
Planet
Moon
Not Available
Element of Planets
Water
Not Available
Energy
Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Goddess Whope
Not Available
Not to wear with
Not Available
Not Available
Powers
Protection
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.90-2.98
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
Absent
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
6.5-7
7.5-8
Chemical Composition
SiO2
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
AbsentWalter Schumann
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Translucent, Translucent to opaque
Gemmological Tables (2004) More from other references
Refractive Index
1.530-1.543
1.650-1.695
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.003-0.009
0.016
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
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