1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa, Sixth Edition (2006)
1.2 Color
Colorless, White, Yellow, Colorless, Yellow, pink
Blue, Green, Blue, Brown
1.3 Streak
1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
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
1.9 Deities
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
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
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.5 Specific Gravity
2.10 Fracture
Irregular/uneven, Brittle, Metallic
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
2.11 Cleavage
Perfect on {10bar10}
none
2.12 Mohs Hardness
3.5 Chemical Composition
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Cu2H2Si2O5(OH)4
4 Optical Properties
4.1 Luster
Vitreous
Vitreous, Greasy
4.2 Pleochroism
Nearly colorless to pale golden yellow
AbsentWalter Schumann
4.3 Dispersion
4.4 Transparency
4.5 Refractive Index
4.6 Optic Character
Not Available
Not Available
4.7 Crystal System
4.8 Birefringence
Not Available0.023-0.050
0
0.296
4.9 Clarity
Not Available
Gemmological Tables (2004) More from other references
5 Benefits
5.1 Physical
5.1.1 Neurological
Not Available
Not Available
5.1.2 Cardiovascular
Not Available
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5.1.3 Respiratory
Not Available
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5.1.4 Reproductive
Not Available
Not Available
5.1.5 Digestive
Not Available
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5.2 Psychology
Not Available
Not Available
5.3 Healing
Not Available
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5.4 Qualities Associated
Not Available
Not Available