Origin
-
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe
Color
Brown, Blue, Green, Yellow, White
Brown
Streak
White
Brownish, Red, Black
For which Rashi?
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-
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
3.32-3.435.2
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
Poor on {110} and {100} very poor on {001}
Good in one direction
Mohs Hardness
6-76-6.5
2
10
👆🏻
Chemical Composition
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH)4
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Resinous
Resinous
Pleochroism
slight in colored varieties
-
Dispersion
0.030.03
0.005
1
👆🏻
Transparency
-
TransparentWalter Schumann
Refractive Index
1.703-1.7522.190-2.457
1
3.25
👆🏻
Optic Character
-
-
Crystal System
tetragonal
Orthorhombic
Birefringence
0.004-0.0060.083
0
0.296
👆🏻
Clarity
-
TransparentWalter Schumann
Physical
Neurological
Enhances mental clarity and focus
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Cardiovascular
Supports heart health
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Respiratory
Good
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Reproductive
-
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Digestive
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Psychology
Transformation
Strength
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Balance