Origin
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Southern and central Africa
Color
Colorless, Yellow, Green, Violet, White, Blue, Red, pink
Red, Brown, Black
Streak
-
Brownish, Red
For which Rashi?
Pisces, Taurus, Gemini, Libra
-
Planet
Saturn
-
Element of Planets
Water
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Apollo
-
Not to wear with
-
-
Powers
Psychic Power
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
insoluble
-
Durability
-
-
Specific Gravity
3.95-4.035.85-6.15
1
7.18
👆🏻
Fracture
Uneven
Conchoidal
Cleavage
None, but may exhibit parting
Fair in four directions forming octahedrons
Mohs Hardness
93.5-4
2
10
👆🏻
Chemical Composition
Al 2 O 3
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Adamantine
Adamantine
Pleochroism
Strong
visible
Dispersion
0.020.05
0.005
1
👆🏻
Transparency
Transparent, Translucent, Transparent to opaque
TranslucentWalter Schumann
Refractive Index
1.762-1.7882.849
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Trigonal
cubic
Birefringence
0.008-0.009-9999
0
0.296
👆🏻
Clarity
Transparent
TranslucentWalter Schumann
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Intuition
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Wisdom
Vitality