Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Southern and central Africa
Color
Brown
Red, Brown, Black
Streak
Brownish, Red, Black
Brownish, Red
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
-
-
Durability
-
-
Specific Gravity
5.25.85-6.15
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Good in one direction
Fair in four directions forming octahedrons
Mohs Hardness
6-6.53.5-4
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Adamantine
Pleochroism
-
visible
Dispersion
0.030.05
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
TranslucentWalter Schumann
Refractive Index
2.190-2.4572.849
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
cubic
Birefringence
0.083-9999
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
TranslucentWalter Schumann
Physical
Neurological
-
-
Cardiovascular
-
Supports heart health
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Vitality
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Vitality