1 Astrology
1.1 Origin
Southern and central Africa
Brazil, Southern and central Africa, Sri Lanka
1.2 Color
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
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
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
Not Available
Insoluble in acids
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
3.62-3.684.20-4.30
1
7.18
2.5 Fracture
Conchoidal
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Not Available
{110} good, 100 moderate, parting on {092} and {011}
2.7 Mohs Hardness
2.8 Chemical Composition
(Mg,Fe,Zn)Al 6BeO 12Ulrich Henn and Claudio C.
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Not Available
Weak to distinct brownish red-green-yellow
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004)
Transparent, Translucent
3.5 Refractive Index
1.719-1.7392.609-2.903
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
3.8 Birefringence
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
Not Available
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