1 Astrology
1.1 Origin
Australia, Spain, Brazil, Germany, Australia, Spain, Brazil, Germany, Australia, Spain, Brazil
Sri Lanka
1.2 Color
Green, Blue, Colorless
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Brown, Brownish, Black, Colorless, Green, gray
1.3 Streak
White
White, Brownish, Brownish, White
1.4 For which Rashi?
1.5 Planet
Not Available
Not Available
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
Past Life Recall
Not Available
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
2.42-2.586.86-7.03
1
7.18
2.5 Fracture
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
2.6 Cleavage
[010] perfect
{100} imperfect, {110} indistinct; partings on {111} or {011}
2.7 Mohs Hardness
2.8 Chemical Composition
AlPO4 · 2(H2O)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Waxy
Adamantine, Greasy
3.2 Pleochroism
MissingWalter Schumann
Pleochroic haloes have been observed. Dichroic in yellow
3.3 Dispersion
3.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Transparent, Translucent
3.5 Refractive Index
1.560-1.5941.990-2.105
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
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4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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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