Origin
Sri Lanka
Brazil
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Blue
Streak
White, Brownish
-
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
-
Durability
-
-
Specific Gravity
6.86-7.032.60-2.90
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Indistinct
Mohs Hardness
6-77.5-8
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Be 3Al 2Si 6O 18Ulrich Henn and Claudio C.
Luster
Adamantine, Greasy
-
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Strong dichroism: blue to colourless\
Dispersion
0.070.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.990-2.1051.560-1.604
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
-
Birefringence
0.096-0.0980.003-0.010
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Poor
-
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Communication