Origin
Southern and central Africa
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Color
Red, Brown, Black
Blue, gray, Black
Streak
Brownish, Red
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
-
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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
5.85-6.153-3.15
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
Fair in four directions forming octahedrons
Good on [110] and on [001]
Mohs Hardness
3.5-46.0-6.5
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
[ ]Na2(Mg3Al2)Si8O22(OH)2
Luster
Adamantine
Vitreous, Pearly
Pleochroism
visible
Strong
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
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Refractive Index
2.8491.606-1.637
1
3.25
👆🏻
Optic Character
-
-
Crystal System
cubic
monoclinic
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
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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
Communication
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Peace