1 Astrology
1.1 Origin
Sri Lanka
Russia, Madagascar, Brazil
1.2 Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
Green, Green, White, Blue
1.3 Streak
White, Brownish, Brownish, White
White
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
Not Available
1.8 Energy
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
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1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
6.86-7.032.55-2.57
1
7.18
2.5 Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
2.7 Mohs Hardness
2.8 Chemical Composition
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KAlSi3O8
3 Optical Properties
3.1 Luster
Adamantine, Greasy
Vitreous
3.2 Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Translucent, Translucent to opaque
3.5 Refractive Index
1.990-2.1051.522-1.530
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
0.096-0.0980.008-0.010
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available