1 Astrology
1.1 Origin
Mexico, USA, Spain
Austria, Mexico, China
1.2 Color
Green, Brown, Yellow, Red, Black
Colorless, Yellow, Brownish, Red, Violet, Blue, gray
1.3 Streak
1.4 For which Rashi?
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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
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
Splintery, Conchoidal, Brittle
2.6 Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
{001}, perfect
2.7 Mohs Hardness
2.8 Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
Visible: X = violet
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
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3.5 Refractive Index
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.022
0
0.296
3.9 Clarity
Transparent
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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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