1 Astrology
1.1 Origin
the type locality
Madagascar, Southern and central Africa
1.2 Color
Colorless, gray, White
Grey, Brownish, Blue, Colorless, White, gray, Reddish
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
Not Available
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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
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.33-2.372.54-2.61
1
7.18
2.5 Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Uneven, Uneven, Gems, Sixth Edition (2006)
2.6 Cleavage
Perfect on {010}, good on {100}
{001} Perfect, {010} Good
2.7 Mohs Hardness
2.8 Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
NilArthur Thomas
WeakMichael OâDonoghue
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.543-1.6311.518-1.536
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
0.071-0.0740.005-0.008
0
0.296
3.9 Clarity
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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