Origin
-
USA
Color
Brownish, Black
Black, Violet, pink, Reddish, Brown, orange
Streak
Brown
-
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
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Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.264.06-4.08
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
None
{???} Perfect
Mohs Hardness
-99994.5-5
2
10
👆🏻
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Mn2+ Zn 2SiO 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Resinous
Vitreous
Pleochroism
Strong: yellow-brown
-
Dispersion
0.020.02
0.005
1
👆🏻
Transparency
Translucent
-
Refractive Index
-99991.720-1.746
1
3.25
👆🏻
Optic Character
-
-
Crystal System
-
monoclinic
Birefringence
-99990.026
0
0.296
👆🏻
Clarity
Translucent
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Physical
Neurological
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Cardiovascular
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Supports heart health
Respiratory
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Good
Reproductive
-
-
Digestive
-
-
Psychology
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Optimism
Healing
-
Emotional healing
Qualities Associated
Protection
Peace