1 Astrology
1.1 Origin
Southern and central Africa
Australia, Spain, Brazil, Germany, Australia, Spain, Brazil, Germany, Australia, Spain, Brazil
1.2 Color
Violet, Blue, Yellow, Brown, White, Colorless
Green, Blue, Colorless
1.3 Streak
1.4 For which Rashi?
1.5 Planet
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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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Past Life Recall
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
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
2.6 Cleavage
2.7 Mohs Hardness
2.8 Chemical Composition
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
AlPO4 · 2(H2O)
3 Optical Properties
3.1 Luster
Vitreous, Resinous
Vitreous, Waxy
3.2 Pleochroism
Weak to strong if coloreD
MissingWalter Schumann
3.3 Dispersion
3.4 Transparency
Transparent
Translucent, Opaque . May be translucent when backlit on the edges.
3.5 Refractive Index
1.631-1.6501.560-1.594
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
Not Available0.031
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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