Origin
Sri Lanka
Brazil, Southern and central Africa, Sri Lanka
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Red, gray
Streak
White, Brownish
Red, Black
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
insoluble
Insoluble in acids
Durability
-
-
Specific Gravity
6.86-7.034.20-4.30
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven, Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
6-76-6.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine, Greasy
Adamantine
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Weak to distinct brownish red-green-yellow
Dispersion
0.070.33
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.990-2.1052.609-2.903
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
tetragonal
Birefringence
0.096-0.0980.296
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Clarity
Healing
Emotional healing
Physical healing
Qualities Associated
Manifestation
Awareness