1 Astrology
1.1 Origin
Brazil, Kenya, Madagascar, Mozambique, Sri Lanka
Italy
1.2 Color
1.3 Streak
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1.4 For which Rashi?
1.5 Planet
1.6 Element of Planets
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1.8 How to Wear?
1.8.1 Finger
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1.8.2 Ring Metal
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2.2 Energy
2.4 Deities
2.5 Not to wear with
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2.6 Powers
2.8 Birthstone
2.8.1 Planetary
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2.8.2 Talisman
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3 Physical Properties
3.1 Tenacity
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3.2 Solubility
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3.3 Durability
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3.4 Specific Gravity
3.5 Fracture
Conchoidal
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
3.6 Cleavage
none, may show indistinct parting
{???} Good, {???} Good
3.7 Mohs Hardness
3.11 Chemical Composition
(Mg,Fe)3Al2Si3O12
(Ca,Mn2+ ,Fe2+ ) 3Al 2BSi 4O 15(OH)Anthony et al , Handbook of mineralogy (2001)
4 Optical Properties
4.1 Luster
Greasy, Vitreous
Vitreous
4.3 Pleochroism
4.4 Dispersion
5.5 Transparency
Gemmological Tables (2004)
Transparent
5.6 Refractive Index
5.7 Optic Character
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5.8 Crystal System
5.9 Birefringence
0.010-0.014Not Available
0
0.296
5.10 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
6 Benefits
6.1 Physical
6.1.1 Neurological
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6.1.2 Cardiovascular
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6.1.3 Respiratory
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6.1.4 Reproductive
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6.1.5 Digestive
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6.2 Psychology
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6.3 Healing
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6.4 Qualities Associated
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