Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
USA, Mexico
Color
Brown
Green, Brown, Greenish, Black
Streak
Brownish, Red, Black
Greenish, gray
For which Rashi?
-
-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.23.19-3.56
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Conchoidal
Cleavage
Good in one direction
{110} Perfect, {010} Indistinct
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
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Luster
Resinous
Vitreous, Resinous
Pleochroism
-
Pale green
Dispersion
0.030.02
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.671-1.774
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Birefringence
0.083-9999
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
-
Good
Reproductive
-
-
Digestive
-
-
Psychology
Strength
Courage
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Grounding