1 Astrology
1.1 Origin
Brazil, Southern and central Africa, Sri Lanka
Southern and central Africa, Sixth Edition (2006)
1.2 Color
Red, gray
Blue, Green, Blue, Brown
1.3 Streak
Red, Black
White, Blue, Green
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
1.12 Birthstone
1.12.1 Planetary
Not Available
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1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
2.2 Solubility
Insoluble in acids
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
4.20-4.302.00-2.45
1
7.18
2.5 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.6 Cleavage
{110} good, 100 moderate, parting on {092} and {011}
none
2.7 Mohs Hardness
2.8 Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Cu2H2Si2O5(OH)4
3 Optical Properties
3.1 Luster
Adamantine
Vitreous, Greasy
3.2 Pleochroism
Weak to distinct brownish red-green-yellow
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Opaque
3.5 Refractive Index
2.609-2.9031.460-1.570
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
3.9 Clarity
Transparent
Gemmological Tables (2004) More from other references
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