Origin
Southern and central Africa
Southern and central Africa
Color
Blue, Violet, Brown, White, Greenish, pink
White, Violet, Blue, Yellow, Brownish, Colorless, Greenish
Streak
White
Colorless
For which Rashi?
Leo, Sagittarius
-
Planet
Saturn
-
Element of Planets
Water
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
Isis
-
Not to wear with
-
-
Powers
Healing
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.26-3.412.78
1
7.18
👆🏻
Fracture
Fibrous, ConchoidalWalter Schumann
Uneven, Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{???} Distinct, {???} Indistinct
Mohs Hardness
7-8.55-6
2
10
👆🏻
Chemical Composition
AlAl6O3BSi3O18
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
-
Dispersion
0.010.02
0.005
1
👆🏻
Transparency
Translucent, Translucent to opaque
Transparent, Translucent
Refractive Index
1.669-1.7231.556-1.600
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
0.011-0.0370.024-0.037
0
0.296
👆🏻
Clarity
Translucent
Transparent
Physical
Neurological
Enhances mental clarity and focus
Aids in mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Patience
Optimism
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Transformation