Origin
Southern and central Africa
Kenya, Southern and central Africa
Color
Red, Brown, Black
Green, Brown, Yellow, Red
Streak
Brownish, Red
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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
5.85-6.153.55-3.70
1
7.18
👆🏻
Fracture
Conchoidal
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Cleavage
Fair in four directions forming octahedrons
Perfect
Mohs Hardness
3.5-44-7
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Luster
Adamantine
Vitreous
Pleochroism
visible
Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli
Dispersion
0.050.02
0.005
1
👆🏻
Transparency
TranslucentWalter Schumann
Transparent
Refractive Index
2.8491.710-1.735
1
3.25
👆🏻
Optic Character
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Biaxial/+
Crystal System
cubic
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Birefringence
-99990.012-0.033
0
0.296
👆🏻
Clarity
TranslucentWalter Schumann
Transparent
Physical
Neurological
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Cardiovascular
Supports heart health
Supports heart health
Respiratory
Poor
Good
Reproductive
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Digestive
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Psychology
Vitality
Intuition
Healing
Emotional healing
Emotional healing
Qualities Associated
Vitality
Tranquility