Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
USA, Southern and central Africa
Color
Brown
Brown, Green, White, gray, Blue, Yellow
Streak
Brownish, Red, Black
White
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
5.24.00-4.65
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Sub-Conchoidal
Cleavage
Good in one direction
Perfect on [1011]
Mohs Hardness
6-6.55-5.5
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Vitreous, Pearly
Pleochroism
-
-
Dispersion
0.030.01
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Translucent
Refractive Index
2.190-2.4571.620-1.850
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Trigonal
Birefringence
0.0830.223-0.227
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Translucent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Harmony