Origin
Southern and central Africa
Southern and central Africa
Color
Colorless, White, gray, Brown, pink
Blue, Violet, Brown, White, Greenish, pink
Streak
White
White
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
3.05-3.083.26-3.41
1
7.18
👆🏻
Fracture
Uneven, Irregular, Conchoidal
Fibrous, ConchoidalWalter Schumann
Cleavage
None
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
6.57-8.5
2
10
👆🏻
Chemical Composition
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
AlAl6O3BSi3O18
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
0.020.01
0.005
1
👆🏻
Transparency
Semitransparent
Translucent, Translucent to opaque
Refractive Index
-99991.669-1.723
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
Orthorhombic
Birefringence
-99990.011-0.037
0
0.296
👆🏻
Clarity
TranslucentAnthony et al
Translucent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
-
Psychology
Empathy
Patience
Healing
Emotional healing
Emotional healing
Qualities Associated
Emotional Healing
Patience