1 Astrology
1.1 Origin
1.2 Color
Yellow, Green, Blue
Colorless, White, Brownish, Yellow, Brown
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
Earth, Air, Water
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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
1.9 Deities
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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.75-2.80Not Available
1
7.18
2.5 Fracture
Uneven, Granular
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Silky, Vitreous
Adamantine
3.2 Pleochroism
3.3 Dispersion
3.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.520-1.6701.994-2.040
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Not Available
Gemmological Tables (2004) More from other references
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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