1 Astrology
1.1 Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Not Available, Origins: Brazil
1.2 Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Greenish, Green, Brownish, Red, Blue, Brown, gray
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
1.6 Element of Planets
Not Available
Earth, Water
1.7 Energy
Not Available
Not Available
1.8 How to Wear?
1.8.1 Finger
Not Available
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1.8.2 Ring Metal
Not Available
Not Available
1.9 Deities
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1.10 Not to wear with
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1.11 Powers
1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.05-3.213.69-3.81
1
7.18
2.5 Fracture
Uneven, Subconchoidal, Splintery
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
2.6 Cleavage
Good on {110}, poor on {100}
Distinct on {110}, imperfect on {010}, poor on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
BeAl 2 O 4
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous
3.2 Pleochroism
strongly trichroic
X = red; Y = yellow-orange; Z = emerald-green
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
3.5 Refractive Index
1.627-1.6501.746-1.763
1
3.25
3.6 Optic Character
3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
0.009-0.0100.007-0.013
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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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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