Origin
USA
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Color
Brown, Red, Black, Brownish
Blue, Green
Streak
Reddish, Brown
Blue
For which Rashi?
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Planet
-
-
Element of Planets
-
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Energy
-
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How to Wear?
Finger
-
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Ring Metal
-
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Deities
-
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Not to wear with
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Powers
-
-
Birthstone
Planetary
-
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Talisman
-
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Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.05-5.223.80-4.15
1
7.18
👆🏻
Fracture
Uneven
Uneven
Cleavage
None
perfect along [010] and [100]
Mohs Hardness
5.5-63.5-4
2
10
👆🏻
Chemical Composition
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Silky
Pleochroism
-
X = very pale blue; Y = pale blue; Z = deep blue
Dispersion
0.190.02
0.005
1
👆🏻
Transparency
Translucent
Translucent
Refractive Index
-99991.752-1.815
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Orthorhombic
Birefringence
-99990.063
0
0.296
👆🏻
Clarity
Translucent
Translucent
Physical
Neurological
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Cardiovascular
-
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Respiratory
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Good
Reproductive
-
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Digestive
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Psychology
Creativity
Communication
Healing
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Emotional healing
Qualities Associated
Grounding
Communication