Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
-
Color
Brown
Colorless, Yellow, Brown, Green, Red, Reddish
Streak
Brownish, Red, Black
White, Yellow, Colorless
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
5.23.0-3.1
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
-
Cleavage
Good in one direction
Perfect on {001}
Mohs Hardness
6-6.53.5
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Ca(Mg,Al)3(Al3Si)O10(OH)2
Luster
Resinous
Vitreous, Pearly
Pleochroism
-
X = colorless
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
-
Refractive Index
2.190-2.4571.643-1.648
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.0830.012-0.015
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
-
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Poor
Reproductive
-
-
Digestive
-
-
Psychology
Strength
-
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Creativity