1 Astrology
1.1 Origin
1.2 Color
Red, Blue, Green, Brown, Black
Colorless, Yellow, Red, Green, Violet, Greenish, gray
1.3 Streak
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.1 Element of Planets
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1.3 Energy
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1.1 How to Wear?
1.2.1 Finger
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1.4.1 Ring Metal
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1.8 Deities
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1.12 Not to wear with
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1.16 Powers
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1.19 Birthstone
1.20.1 Planetary
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1.25.1 Talisman
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2 Physical Properties
2.1 Tenacity
2.5 Solubility
none
Slowly dissolves in water
2.11 Durability
Not Available
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2.14 Specific Gravity
3.63-3.9Not Available
1
7.18
5.10 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle
5.11 Cleavage
5.12 Mohs Hardness
8.7 Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Not Available
9 Optical Properties
9.1 Luster
9.2 Pleochroism
9.3 Dispersion
9.10 Transparency
Transparent, Translucent
Not Available
9.11 Refractive Index
1.770-1.7801.5329-1.5347
1
3.25
9.19 Optic Character
Not Available
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9.21 Crystal System
9.23 Birefringence
Not AvailableNot Available
0
0.296
11.3 Clarity
Transparent
Not Available
13 Benefits
13.1 Physical
13.1.2 Neurological
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13.1.5 Cardiovascular
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13.2.1 Respiratory
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13.3.1 Reproductive
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13.4.1 Digestive
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13.6 Psychology
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13.8 Healing
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13.10 Qualities Associated
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