1 Astrology
1.1 Origin
Mexico
Southern and central Africa
1.2 Color
White, gray, Brownish, Yellow, Greenish
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
1.3 Streak
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
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
Distinct on {001} and {110}, indistinct on {100}
{???} Indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Weakly pleochroic with O reddish and E greenish in thick sections.
Very strong: pale yellow colorless
3.3 Dispersion
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
3.5 Refractive Index
2.117-2.1451.614-1.666
1
3.25
3.6 Optic Character
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3.7 Crystal System
tetragonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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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