Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
USA
Color
Brown
Brown, Red, Black, Brownish
Streak
Brownish, Red, Black
Reddish, 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
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.25.05-5.22
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Good in one direction
None
Mohs Hardness
6-6.55.5-6
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Luster
Resinous
-
Pleochroism
-
-
Dispersion
0.030.19
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Translucent
Refractive Index
2.190-2.457-9999
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
0.083-9999
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Creativity
Healing
Emotional healing
-
Qualities Associated
Balance
Grounding