1 Astrology
1.1 Origin
1.4 Color
Black, Blue, Yellow, Green
Colorless, Colorless, Greenish, Yellow, White, pink
1.7 Streak
Grey, Greenish, Brown
White
1.10 For which Rashi?
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1.14 Planet
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1.17 Element of Planets
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1.19 Energy
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1.20 How to Wear?
1.20.1 Finger
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1.21.1 Ring Metal
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2.3 Deities
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2.6 Not to wear with
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2.8 Powers
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2.10 Birthstone
2.10.1 Planetary
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2.11.1 Talisman
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4 Physical Properties
4.1 Tenacity
4.3 Solubility
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4.5 Durability
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4.7 Specific Gravity
3.28-3.442.54-2.61
1
7.18
4.14 Fracture
Uneven, Splintery, Brittle
Gems, Uneven
4.15 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
4.16 Mohs Hardness
6.4 Chemical Composition
Not Available
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
7 Optical Properties
7.1 Luster
Vitreous, Silky
Vitreous, Pearly
7.2 Pleochroism
7.3 Dispersion
7.8 Transparency
Not Available
Gemmological Tables (2004) More from other references
7.9 Refractive Index
1.680-1.6981.518-1.536
1
3.25
7.15 Optic Character
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7.17 Crystal System
7.18 Birefringence
0.005-0.0080.0050-0.0060
0
0.296
9.2 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda
10 Benefits
10.1 Physical
10.1.1 Neurological
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10.1.3 Cardiovascular
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10.1.5 Respiratory
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10.3.1 Reproductive
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10.4.1 Digestive
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10.5 Psychology
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10.6 Healing
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10.7 Qualities Associated
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