Astrology
Origin
Madagascar, Southern and central Africa
Turkey
Color
Grey, Brownish, Blue, Colorless, White, gray, Reddish
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
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
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.54-2.61
3.30-3.40
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Brittle, Conchoidal
Cleavage
{001} Perfect, {010} Good
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
6
6.5-7
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Optical Properties
Luster
Not Available
Pearly
Pleochroism
WeakMichael OâDonoghue
Strong
Dispersion
Not Available
Not Available
Transparency
Transparent
Transparent
Refractive Index
1.518-1.536
1.702-1.750
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.005-0.008
0.048
Clarity
Transparent
Transparent
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
