1 Astrology
1.1 Origin
Brazil, Colombia, Southern and central Africa
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1.2 Color
Greenish, Blue, Colorless, White, Green
Black, Green, Brown, Red, Greenish, Yellow, Brown, Green, Yellow, orange
1.3 Streak
White
Yellow, Green, Greenish, Yellow
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 Energy
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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
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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
2.17 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
Brittle, Metallic, Brittle, Metallic
2.18 Cleavage
{010} Perfect
distinct; good on {0001}
2.19 Mohs Hardness
5.5 Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbFe+++3(AsO4)(SO4)(OH)6
6 Optical Properties
6.1 Luster
Vitreous
Vitreous, Resinous
6.2 Pleochroism
Weak: colorless-(greenish) yellow
visible
6.3 Dispersion
7.10 Transparency
Gemmological Tables (2004) More from other references
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7.11 Refractive Index
7.23 Optic Character
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7.24 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Trigonal
7.25 Birefringence
10.8 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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11 Benefits
11.1 Physical
11.1.1 Neurological
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11.1.2 Cardiovascular
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11.1.3 Respiratory
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11.1.4 Reproductive
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11.2.1 Digestive
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11.3 Psychology
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12.2 Healing
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12.3 Qualities Associated
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