Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
White, Reddish, Colorless, gray, Red
Streak
White, Brownish
White
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
Brittle
Solubility
insoluble
-
Durability
-
-
Specific Gravity
6.86-7.032.77
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect [001] good [010] poor [110]
Mohs Hardness
6-76-6.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
colorless.
Dispersion
0.070.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.990-2.1051.575-1.588
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Triclinic
Birefringence
0.096-0.0980.012-0.013
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
Improves cognitive function
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Poor
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Balance