1 Astrology
1.1 Origin
USA, Southern and central Africa
Canada, USA, Italy, Russia, Switzerland, Tanzania, Kenya, Sri Lanka
1.2 Color
Brown, Green, White, gray, Blue, Yellow
Green, Yellow, Brown, Violet, Blue
1.3 Streak
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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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
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
4.00-4.65Not Available
1
7.18
2.5 Fracture
Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Not Available
2.6 Cleavage
Perfect on [1011]
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2.7 Mohs Hardness
2.8 Chemical Composition
ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
3 Optical Properties
3.1 Luster
Vitreous, Pearly
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3.2 Pleochroism
AbsentWalter Schumann
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3.3 Dispersion
3.4 Transparency
Translucent
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3.5 Refractive Index
1.620-1.8501.67-1.76
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.223-0.227Not Available
0
0.296
3.9 Clarity
Translucent
Color grading system
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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