1 Astrology
1.1 Origin
Southern and central Africa
Brazil
1.2 Color
White, Colorless, Blue, Red, Green, Yellow, Violet
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
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
Not Available
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
Not Available
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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
Not Available
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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
2.58-2.642.65-2.90
1
7.18
2.5 Fracture
Not Available
Gemstones (2009), Flexible Flexible fragments.
2.6 Cleavage
Not Available
{001} Perfect
2.7 Mohs Hardness
2.8 Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
TranslucentWalter Schumann, Gemstones of the world (2001)
Translucent
3.5 Refractive Index
1.530-1.5401.534-1.601
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Not Available
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3.8 Birefringence
3.9 Clarity
TranslucentWalter Schumann
Translucent
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
Not Available
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