1 Astrology
1.1 Origin
1.2 Color
Red
Colorless, Colorless, Yellow, Green, White, Blue
1.3 Streak
1.4 For which Rashi?
Taurus, Leo, Taurus, Leo, Taurus, Leo
Not Available
1.5 Planet
1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
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1.8 Energy
1.9 Deities
Isis, Bragi
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1.10 Not to wear with
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1.11 Powers
Protection, Healing, Courage
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.58-2.642.70-2.75
1
7.18
2.5 Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Absent
From the Greek for luster, for its pearly luster on the cleavage.
2.7 Mohs Hardness
2.8 Chemical Composition
SiO2
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
Translucent, Transparent to nearly opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.535-1.5391.570-1.591
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.003-0.0090.020-0.021
0
0.296
3.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
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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