Origin
Southern and central Africa
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Color
Red, Brown, Black
Yellow, Black
Streak
Brownish, Red
Green
For which Rashi?
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Planet
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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
-
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Birthstone
Planetary
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Talisman
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Tenacity
Brittle
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Solubility
-
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Durability
-
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Specific Gravity
5.85-6.154.39
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Fair in four directions forming octahedrons
{111} Indistinct, {111} Indistinct, {111} Indistinct
Mohs Hardness
3.5-47.5-8
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Luster
Adamantine
Vitreous
Pleochroism
visible
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Dispersion
0.050.03
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
Translucent
Refractive Index
2.8491.80-1.83
1
3.25
👆🏻
Optic Character
-
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Crystal System
cubic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
Translucent
Physical
Neurological
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Cardiovascular
Supports heart health
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Respiratory
Poor
Good
Reproductive
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Digestive
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Psychology
Vitality
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Healing
Emotional healing
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Qualities Associated
Vitality
Balance