Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Austria, Zimbabwe, Australia
Color
Brown
Red, Brown, Violet
Streak
Brownish, Red, Black
Black
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
5.25.06-5.08
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Subconchoidal, Conchoidal
Cleavage
Good in one direction
Poor on [111].
Mohs Hardness
6-6.53-3.25
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Cu5FeS4
Luster
Resinous
-
Pleochroism
-
Weak
Dispersion
0.03-
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
-
Refractive Index
2.190-2.457-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.083-9999
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Transformation
Healing
Emotional healing
Physical healing
Qualities Associated
Balance
Creativity