Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Sri Lanka
Color
Brown
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Streak
Brownish, Red, Black
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
5.26.86-7.03
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
Good in one direction
{100} imperfect, {110} indistinct; partings on {111} or {011}
Mohs Hardness
6-6.56-7
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Adamantine, Greasy
Pleochroism
-
Pleochroic haloes have been observed. Dichroic in yellow
Dispersion
0.030.07
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.990-2.105
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
tetragonal
Birefringence
0.0830.096-0.098
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Focus
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Manifestation