1 Astrology
1.1 Origin
the type locality
Canada, Southern and central Africa
1.2 Color
Colorless, gray, White
Green, Green, Yellow, Red
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
Not Available
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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
2.33-2.373.28-3.32
1
7.18
2.5 Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
2.6 Cleavage
Perfect on {010}, good on {100}
{101} Distinct
2.7 Mohs Hardness
2.8 Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
ThCa 2Si 8O 20Walter Schumann , Gemstones of the world (2001) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
NilArthur Thomas
Not Available
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
1.543-1.6311.593-1.596
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
3.8 Birefringence
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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