1 Astrology
1.1 Origin
1.2 Color
Violet, Blue, White
Red, Reddish, Brown, Black, Brown, Reddish, orange
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
1.10 Not to wear with
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1.11 Powers
Protection, Courage
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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
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2.3 Durability
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2.4 Specific Gravity
2.50-3.003.87-4.14
1
7.18
2.5 Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
2.6 Cleavage
3,6
Poor on {120}, in traces on {001}
2.7 Mohs Hardness
2.8 Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Adamantine
3.2 Pleochroism
AbsentWalter Schumann
Very weak
3.3 Dispersion
3.4 Transparency
Opaque
Gemmological Tables (2004) More from other references
3.5 Refractive Index
1.500-1.6702.583-2.741
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.117
0
0.296
3.9 Clarity
Gemstones of the world (2001)
Gemmological Tables (2004) More from other references
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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