1 Astrology
1.1 Origin
1.2 Color
Brownish, Black, Colorless, White, gray, Blue, Green
White, Colorless, Yellow
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
Not Available
1.6 Element of Planets
Not Available
Not Available
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Not Available
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Not Available
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Not Available
Not Available
2.2 Solubility
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
6.46-6.571.97-2.22
1
7.18
2.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Good [110] and [021]
Not Available
2.7 Mohs Hardness
2.8 Chemical Composition
PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
3 Optical Properties
3.1 Luster
Adamantine, Vitreous, Resinous
Not Available
3.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent
3.5 Refractive Index
1.803-2.0781.370-1.
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Orthorhombic
Not Available
3.8 Birefringence
0.273Not Available
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
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4.1.3 Respiratory
Not Available
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4.1.4 Reproductive
Not Available
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4.1.5 Digestive
Not Available
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4.2 Psychology
Not Available
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4.3 Healing
Not Available
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4.4 Qualities Associated
Not Available
Not Available