1 Astrology
1.1 Origin
Brazil, Colombia, Southern and central Africa
Australia
1.2 Color
Greenish, Blue, Colorless, White, Green
White, Red, Green, Yellow, Violet, Blue, orange
1.3 Streak
1.4 For which Rashi?
Not Available
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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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
3.08-3.12Not Available
1
7.18
2.5 Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
Not Available
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pt
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weak: colorless-(greenish) yellow
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3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Opaque
3.5 Refractive Index
1.650-1.677Not Available
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Isometric
3.8 Birefringence
0.019-0.025Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Opaque
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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