Origin
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Brazil, Southern and central Africa
Color
Brown
Blue, Green, Black
Streak
Brownish, Red, Black
White
For which Rashi?
-
Gemini, Sagittarius
Planet
-
Jupiter
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.23.04-3.17
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven
Cleavage
Good in one direction
{001} Indistinct, {???} Indistinct
Mohs Hardness
6-6.55.5
2
10
👆🏻
Chemical Composition
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Luster
Resinous
-
Pleochroism
-
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Dispersion
0.030.01
0.005
1
👆🏻
Transparency
TransparentWalter Schumann
Transparent, Translucent
Refractive Index
2.190-2.4571.604-1.646
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Orthorhombic
monoclinic
Birefringence
0.0830.031-0.036
0
0.296
👆🏻
Clarity
TransparentWalter Schumann
Transparent
Physical
Neurological
-
Balances digestive system and reduces bloating
Cardiovascular
-
-
Respiratory
-
Excellent
Reproductive
-
-
Digestive
-
Supports digestive health
Psychology
Strength
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
Balance
Psychic Abilities