Origin
Brazil
Southern and central Africa
Color
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
Black, Brownish, Brown
Streak
White
Brown
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.65-2.904.5-4.8
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
{001} Perfect
None, parting may develop along {111}
Mohs Hardness
-99995.5
2
10
👆🏻
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe++Cr2O4
Luster
Pearly
-
Pleochroism
-
none.
Dispersion
0.050.04
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
1.534-1.6012.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Isometric
Birefringence
0.050-9999
0
0.296
👆🏻
Clarity
Translucent
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
-
Vitality
Healing
-
Emotional healing
Qualities Associated
Emotional Healing
Protection