1 Astrology
1.1 Origin
Russia, Madagascar, Brazil
Brazil, Southern and central Africa
1.2 Color
Green, Green, White, Blue
Blue, Green, Black
1.3 Streak
1.4 For which Rashi?
Virgo
Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius
1.5 Planet
1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
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1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.55-2.573.04-3.17
1
7.18
2.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, Gemstones of the world (2001) More from other references
2.6 Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
{001} Indistinct, {???} Indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
KAlSi3O8
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
WeakMichael OâDonoghue
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
3.3 Dispersion
3.4 Transparency
Translucent, Translucent to opaque
Transparent, Translucent
3.5 Refractive Index
1.522-1.5301.604-1.646
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.008-0.0100.031-0.036
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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