Origin
-
Russia
Color
Brownish, Black
Red, Reddish, Brown, Black, orange
Streak
Brown
White
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
3.263.87-4.14
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Conchoidal
Cleavage
None
Poor on {120}, in traces on {001}
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Adamantine
Pleochroism
Strong: yellow-brown
Very weak
Dispersion
0.020.20
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
-99992.583-2.741
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
Orthorhombic
Birefringence
-99990.117
0
0.296
👆🏻
Clarity
Translucent
-
Physical
Neurological
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-
Cardiovascular
-
-
Respiratory
-
-
Reproductive
-
-
Digestive
-
-
Psychology
-
Transformation
Healing
-
Emotional healing
Qualities Associated
Protection
Transformation