Astrology
Origin
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Turkey
Color
Colorless, Yellow, Green, Violet, White, Blue, Red, pink
Colorless, White, Yellow, Greenish, gray, Brown
Streak
Not Available
White
For which Rashi?
Pisces, Taurus, Gemini, Libra
Not Available
Planet
Saturn
Not Available
Element of Planets
Water
Not Available
Energy
Not Available
Not Available
How to Wear?
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Apollo
Not Available
Not to wear with
Not Available
Not Available
Powers
Psychic Power
Not Available
Birthstone
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Physical Properties
Tenacity
Not Available
Very brittle
Solubility
insoluble
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.95-4.03
3.30-3.40
Fracture
Uneven
Conchoidal
Cleavage
None, but may exhibit parting
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
9
6.5-7
Chemical Composition
Al 2 O 3
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Optical Properties
Luster
Vitreous, Adamantine
Pearly
Pleochroism
Strong
Strong
Dispersion
0.02
21
Not Available
Transparency
Transparent, Translucent, Transparent to opaque
Transparent
Refractive Index
1.762-1.788
1.702-1.750
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.008-0.009
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