Astrology
Origin
Southern and central Africa
Mozambique, Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Yellow, Reddish, Brown, Greenish
Streak
Not Available
Yellow
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
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
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.50
Not Available
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Not Available
{???} Perfect
Mohs Hardness
5.5-6.5
5.5-6
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
SbTaO 4Ulrich Henn and Claudio C.
Optical Properties
Luster
Not Available
Adamantine
Pleochroism
AbsentWalter Schumann
Not Available
Dispersion
None
Not Available
Transparency
Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.37-1.52
2.37-2.45
Optic Character
Not Available
Not Available
Crystal System
Not Available
Not Available
Birefringence
Not Available
0.08
Clarity
Translucent
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
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Digestive
Not Available
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Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
