1 Astrology
1.1 Origin
Turkey
Tanzania, Sri Lanka, China
1.2 Color
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
Colorless
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
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
Very brittle
Not Available
2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
3.30-3.403.60-3.61
1
7.18
2.5 Fracture
Conchoidal, Brittle, Conchoidal
Conchoidal
2.6 Cleavage
{010} perfect, {110} distinct, {100} in traces
Imperfect/fair/absent
2.7 Mohs Hardness
2.8 Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.702-1.7501.70-1.73
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent
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
Not Available
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