1 Astrology
1.1 Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
USA
1.2 Color
Colorless, gray, Yellow, White
Brown, Red, Black, Brownish
1.3 Streak
Colorless
Reddish, Brown, Reddish, Brown
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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1.8 Energy
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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
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
2.6 Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
None
2.7 Mohs Hardness
2.8 Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Vitreous, Pearly
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3.2 Pleochroism
AbsentWalter Schumann
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3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
3.5 Refractive Index
1.502-1.523Not Available
1
3.25
3.6 Optic Character
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3.7 Crystal System
monoclinic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
3.8 Birefringence
0.012-0.016Not Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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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