1 Astrology
1.1 Origin
Brazil, Colombia, Southern and central Africa
Mexico
1.2 Color
Greenish, Blue, Colorless, White, Green
Yellow, Brownish, Reddish, White, Colorless, Blue, Green, Yellow, Green, Yellow, Brownish, Reddish, White, Colorless, Blue, Green, Yellow, Green, Violet, pink, Yellow, Green, Violet, pink
1.3 Streak
White
White, Green, White, Green
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 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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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
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.08-3.124.32-4.48
1
7.18
2.5 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
2.6 Cleavage
{010} Perfect
{101}, good; {010}, poor
2.7 Mohs Hardness
2.8 Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weak: colorless-(greenish) yellow
NilArthur Thomas
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
3.5 Refractive Index
1.650-1.6771.708-1.722
1
3.25
3.6 Optic Character
3.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Orthorhombic
3.8 Birefringence
0.019-0.0250.031-0.050
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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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