Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Colorless, Greenish, Green, gray, Yellow
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
6.86-7.033.21-3.38
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Irregular/uneven, Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect on {001}
Mohs Hardness
6-76-7
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Adamantine, Greasy
Vitreous
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
StrongArthur Thomas
Dispersion
0.070.02
0.005
1
👆🏻
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.990-2.1051.670-1.734
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
monoclinic
Birefringence
0.096-0.0980.006-0.011
0
0.296
👆🏻
Clarity
Transparent
Transparent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Empathy
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Empathy