1 Astrology
1.1 Origin
Sri Lanka
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
1.2 Color
Red, Brown, Black
Green, Colorless, gray, Yellow, White
1.3 Streak
1.4 For which Rashi?
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
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1.8 Energy
1.9 Deities
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
2.2 Solubility
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.97-3.142.80-2.95
1
7.18
2.5 Fracture
Uneven, Conchoidal, Brittle
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
2.6 Cleavage
{1011} Indistinct
Distinct on [001]
2.7 Mohs Hardness
2.8 Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca2Al2Si3O12(OH)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Pale yellow colorlessAnthony et al
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.614-1.6661.611-1.673
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Not Available
Orthorhombic
3.8 Birefringence
0.014-0.0320.021-0.033
0
0.296
3.9 Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
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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