1 Astrology
1.1 Origin
Brazil
Canada, Madagascar, Southern and central Africa, Sri Lanka, USA
1.2 Color
Blue, Green, Colorless, White
Violet, Blue
1.3 Streak
1.4 For which Rashi?
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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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1.9 Energy
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2.3 Deities
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2.4 Not to wear with
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2.6 Powers
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2.7 Birthstone
2.7.1 Planetary
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2.7.2 Talisman
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3 Physical Properties
3.1 Tenacity
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3.2 Solubility
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3.3 Durability
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3.4 Specific Gravity
3.7 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
3.8 Cleavage
{001} Perfect
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3.9 Mohs Hardness
4.5 Chemical Composition
NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
5 Optical Properties
5.1 Luster
5.2 Pleochroism
Not Available
Strong trichroism: colorless to yellowish
5.3 Dispersion
5.4 Transparency
5.5 Refractive Index
1.590-1.5991.542-1.578
1
3.25
5.6 Optic Character
5.7 Crystal System
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5.8 Birefringence
5.9 Clarity
6 Benefits
6.1 Physical
6.1.1 Neurological
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6.1.2 Cardiovascular
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6.1.3 Respiratory
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6.1.4 Reproductive
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6.1.5 Digestive
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6.2 Psychology
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6.3 Healing
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6.4 Qualities Associated
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