1 Astrology
1.1 Origin
Southern and central Africa, USA, Australia, Brazil, USA, Australia, Brazil, USA
Russia
1.2 Color
Green
Red, Reddish, Brown, Black, Brown, Reddish, orange
1.3 Streak
1.4 For which Rashi?
Cancer, Taurus, Cancer, Taurus, Cancer, Taurus
Not Available
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Protection, Healing
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.58-2.643.87-4.14
1
7.18
2.5 Fracture
Gems, Sixth Edition (2006)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
None
Poor on {120}, in traces on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
SiO2 (with a high level of nickel impurities )
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Vitreous, Waxy
Adamantine
3.2 Pleochroism
AbsentWalter Schumann
Very weak
3.3 Dispersion
3.4 Transparency
Translucent, Translucent, Opaque, Translucent to nearly opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.530-1.5432.583-2.741
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Translucent
Gemmological Tables (2004) More from other references
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available