1 Astrology
1.1 Origin
Afghanistan, Brazil, Southern and central Africa, Madagascar, Russia, USA, Zimbabwe
Southern and central Africa
1.2 Color
Colorless, Blue
Red, Blue, Green, Reddish, Brown
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.68-2.723.79-3.94
1
7.18
2.5 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Lamellar, Splintery
2.6 Cleavage
Not Available
{100} Good, {001} Good, {010} Poor
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weak: golden-yellow
Not Available
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
TranslucentAnthony et al, Handbook of mineralogy (2001)
3.5 Refractive Index
1.566-1.5791.670-1.734
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Not Available
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3.8 Birefringence
0.005-0.009Not Available
0
0.296
3.9 Clarity
Transparent
TranslucentAnthony et al
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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