Origin
Sri Lanka
Southern and central Africa
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Black, Brownish, Brown
Streak
White, Brownish
Brown
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
6.86-7.034.5-4.8
1
7.18
👆🏻
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
None, parting may develop along {111}
Mohs Hardness
6-75.5
2
10
👆🏻
Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe++Cr2O4
Luster
Adamantine, Greasy
-
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
none.
Dispersion
0.070.04
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.990-2.1052.08-2.16
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Isometric
Birefringence
0.096-0.098-9999
0
0.296
👆🏻
Clarity
Transparent
-
Physical
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Poor
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Focus
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Manifestation
Protection