1 Astrology
1.1 Origin
Canada, Columbia, Brazil, Burma, Russia, blue
Madagascar
1.2 Color
Blue, White, pink, gray, Green
Brownish, Black, Reddish, Brown, Blue
1.3 Streak
1.4 For which Rashi?
Sagittarius
Not Available
1.5 Planet
1.6 Element of Planets
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
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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
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
Poor on {110}
{0001} good, {10 1 0} parting
2.7 Mohs Hardness
2.8 Chemical Composition
Na8Al6Si6O24Cl2
(Ca,Ce)(Al,Ti,Mg)12O19
3 Optical Properties
3.1 Luster
3.2 Pleochroism
AbsentWalter Schumann
O = brownish gray; E = gray
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Opaque
Handbook of mineralogy (2001)
3.5 Refractive Index
1.478-1.4881.79-1.807
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not AvailableNot Available
0
0.296
3.9 Clarity
Transparent
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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