1 Astrology
1.1 Origin
Australia, Spain, Brazil, Germany, Australia, Spain, Brazil, Germany, Australia, Spain, Brazil
Madagascar
1.2 Color
Green, Blue, Colorless
Brownish, Black, Reddish, Brown, Blue
1.3 Streak
1.4 For which Rashi?
1.5 Planet
Not Available
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1.6 Element of Planets
1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
1.9 Deities
Past Life Recall
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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
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
[010] perfect
{0001} good, {10 1 0} parting
2.7 Mohs Hardness
2.8 Chemical Composition
AlPO4 · 2(H2O)
(Ca,Ce)(Al,Ti,Mg)12O19
3 Optical Properties
3.1 Luster
3.2 Pleochroism
MissingWalter Schumann
O = brownish gray; E = gray
3.3 Dispersion
3.4 Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Handbook of mineralogy (2001)
3.5 Refractive Index
1.560-1.5941.79-1.807
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
3.8 Birefringence
0.031Not Available
0
0.296
3.9 Clarity
Translucent
Handbook of mineralogy (2001)
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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