1 Astrology
1.1 Origin
Southern and central Africa
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
1.2 Color
Yellow, Green, Blue, Violet
Red, Reddish, orange, Brown
1.3 Streak
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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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
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1.9 Deities
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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
3.90-4.054.12-4.18
1
7.18
2.5 Fracture
Not Available
ConchoidalArthur Thomas, Conchoidal, Brittle
2.6 Cleavage
Not Available
{???} Distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
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3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.758-1.7801.789-1.820
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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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