Origin
Sri Lanka
USA, Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Brown, Green, White, gray, Blue, 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
6.86-7.034.00-4.65
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven, Sub-Conchoidal
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect on [1011]
Mohs Hardness
6-75-5.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine, Greasy
Vitreous, Pearly
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
-
Dispersion
0.070.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.990-2.1051.620-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Trigonal
Birefringence
0.096-0.0980.223-0.227
0
0.296
👆🏻
Clarity
Transparent
Translucent
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Good
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Harmony