Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Mexico, Thailand, Italy, Austria
Color
Brown
Green, Brown, Colorless, Greenish, gray, Yellow, White
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
-
Soluble
Durability
-
-
Specific Gravity
5.23.30-3.50
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Good in one direction
Perfect on {110}, poor on {101}, {001} rare
Mohs Hardness
6-6.55
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Vitreous, Adamantine, Silky
Pleochroism
-
-
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.614-1.636
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.0830.022
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Emotional Healing
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Inner Peace