Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Southern and central Africa
Color
Brown
White, Violet, Blue, Yellow, Brown, Brownish, Colorless, Greenish
Streak
Brownish, Red, Black
White
For which Rashi?
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-
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
5.22.50
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Good in one direction
Distinct on {100} and {110}
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
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Luster
Resinous
Vitreous, Pearly, Resinous
Pleochroism
-
-
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.540-1.550
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
tetragonal
Birefringence
0.0830.004-0.008
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
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Cardiovascular
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-
Respiratory
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-
Reproductive
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-
Digestive
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Psychology
Strength
Optimism
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Spiritual Growth