Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Color
Brown
Blue, Violet, Colorless, Red, Green, Brown
Streak
Brownish, Red, Black
White
For which Rashi?
-
Sagittarius, Scorpio
Planet
-
Pluto
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
Hephaestus
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.23.64-3.66
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Conchoidal, Uneven
Cleavage
Good in one direction
None, but may exhibit slight parting
Mohs Hardness
6-6.58
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
MgAl2O4
Luster
Resinous
Vitreous
Pleochroism
-
Absent
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent, Transparent to translucent
Refractive Index
2.190-2.4571.73
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Isometric
Birefringence
0.083-9999
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
-
-
Cardiovascular
-
-
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Revitalization
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Vitality