1 Astrology
1.1 Origin
Australia, Southern and central Africa
Canada, Russia
1.2 Color
Red, Yellow, Red, orange
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
1.3 Streak
yellowish orange
Brown, White, Brown, White
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
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Uneven, Brittle, Metallic
2.6 Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Perfect on [001] imperfect on [100]
2.7 Mohs Hardness
2.8 Chemical Composition
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
Adamantine
Greasy, Pearly
3.2 Pleochroism
Distinctly trichroic
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
2.31-2.661.678-1.758
1
3.25
3.6 Optic Character
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3.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Triclinic
3.8 Birefringence
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0
0.296
3.9 Clarity
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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