Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Southern and central Africa
Color
Brown
Blue
Streak
Brownish, Red, Black
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For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
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-
Powers
-
-
Birthstone
Planetary
-
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Talisman
-
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Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.22.64-2.69
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
-
Cleavage
Good in one direction
None
Mohs Hardness
6-6.57
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Resinous
-
Pleochroism
-
-
Dispersion
0.030.01
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.544-1.553
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
-
Birefringence
0.0830.009
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
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Cardiovascular
-
-
Respiratory
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Good
Reproductive
-
-
Digestive
-
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Psychology
Strength
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Renewal