1 Astrology
1.1 Origin
Spain
Southern and central Africa
1.2 Color
Brown, Green, Brownish, Yellow, Greenish, White, Brown, Black
Greenish, Blue, Colorless, Green, Yellow
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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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
Not Available
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
Not Available
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2.2 Solubility
2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Fibrous
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
2.6 Cleavage
[010] Perfect, [100] Distinct, [011] Distinct
(0001) indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
Not Available
SiCArthur Thomas , Gemstones (2009)
3 Optical Properties
3.1 Luster
Vitreous, Pearly, Silky
Adamantine
3.2 Pleochroism
Not Available
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.519-1.5212.648-2.691
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.0090-0.01000.043
0
0.296
3.9 Clarity
Not Available
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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