1 Astrology
1.1 Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Madagascar
1.2 Color
Blue, Violet, Colorless, Red, Green, Brown
Brownish, Black, Reddish, Brown, Blue
1.3 Streak
1.4 For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
1.5 Planet
1.6 Element of Planets
Not Available
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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
1.9 Deities
1.10 Not to wear with
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1.11 Powers
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
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2.2 Solubility
2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
None, but may exhibit slight parting
{0001} good, {10 1 0} parting
2.7 Mohs Hardness
2.8 Chemical Composition
MgAl2O4
(Ca,Ce)(Al,Ti,Mg)12O19
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Absent
O = brownish gray; E = gray
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to translucent
Handbook of mineralogy (2001)
3.5 Refractive Index
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Handbook of mineralogy (2001)
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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