Origin
Southern and central Africa
USA, Southern and central Africa
Color
Blue, Violet, Brown, White, Greenish, pink
Yellow, Brown, Reddish, Greenish, Green, gray
Streak
White
Yellow
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
3.26-3.415.5
1
7.18
👆🏻
Fracture
Fibrous, ConchoidalWalter Schumann
Conchoidal
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
7-8.55-5.5
2
10
👆🏻
Chemical Composition
AlAl6O3BSi3O18
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous
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
Translucent
Refractive Index
1.669-1.7231.993-2.02
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
0.011-0.037-9999
0
0.296
👆🏻
Clarity
Translucent
Translucent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
-
Respiratory
Good
-
Reproductive
-
-
Digestive
-
-
Psychology
Patience
Confidence
Healing
Emotional healing
Emotional healing
Qualities Associated
Patience
Vitality