1 Astrology
1.1 Origin
Southern and central Africa, Sixth Edition (2006), California
Southern and central Africa
1.2 Color
All colors, White, Colorless, Blue, Red, Green, Yellow, pink
Brown, Brownish, White, Colorless, Yellow
1.3 Streak
1.4 For which Rashi?
Scorpio, Aries, Virgo
Not Available
1.5 Planet
1.6 Element of Planets
1.7 Energy
1.8 How to Wear?
1.8.1 Finger
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1.8.2 Ring Metal
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
Healing, Protection
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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
2.58-2.911.58-1.60
1
7.18
2.5 Fracture
Conchoidal, Gemstones of the world (2001)
ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
Indiscernible
{011} Imperfect
2.7 Mohs Hardness
2.8 Chemical Composition
SiO2
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
Weak: yellowish brown yellowAnthony et al
3.3 Dispersion
3.4 Transparency
Opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not Available0.030
0
0.296
3.9 Clarity
OpaqueHerve Nicolas Lazzarelli
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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