1 Astrology
1.1 Origin
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
Austria, Mexico, China
1.2 Color
Violet, White, gray, Brown, pink, Yellow
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
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery
Splintery, Conchoidal, Brittle
2.6 Cleavage
{100} Distinct, {110} Distinct
{001}, perfect
2.7 Mohs Hardness
2.8 Chemical Composition
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
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3 Optical Properties
3.1 Luster
3.2 Pleochroism
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Visible: X = violet
3.3 Dispersion
1.5 Transparency
Gemmological Tables (2004) More from other references
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1.6 Refractive Index
1.7 Optic Character
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1.8 Crystal System
1.9 Birefringence
1.13 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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2 Benefits
2.1 Physical
2.1.1 Neurological
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2.1.2 Cardiovascular
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2.1.3 Respiratory
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2.1.4 Reproductive
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2.1.5 Digestive
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2.2 Psychology
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2.3 Healing
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2.4 Qualities Associated
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