1 Astrology
1.1 Origin
Italy, Canada
Southern and central Africa
1.2 Color
Blue, Red, Yellow, Colorless, Blue, Colorless, Green, Yellow, White, Blue, Colorless, Green, Yellow, White
Green
1.3 Streak
White
Greenish, White, Greenish, White
1.5 For which Rashi?
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1.8 Planet
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1.10 Element of Planets
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1.12 How to Wear?
1.12.1 Finger
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1.13.1 Ring Metal
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1.14 Energy
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1.16 Deities
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2.2 Not to wear with
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2.4 Powers
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2.6 Birthstone
2.6.2 Planetary
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2.9.1 Talisman
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3 Physical Properties
3.1 Tenacity
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3.3 Solubility
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3.4 Durability
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3.6 Specific Gravity
7.4 Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
7.7 Cleavage
Poor/indistinct on {1120} and {1011}
{???} Indistinct
7.8 Mohs Hardness
8.9 Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
9 Optical Properties
9.1 Luster
9.2 Pleochroism
9.3 Dispersion
10.1 Transparency
10.3 Refractive Index
11.5 Optic Character
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11.6 Crystal System
Trigonal
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
11.7 Birefringence
0.014-0.032Not Available
0
0.296
11.8 Clarity
12 Benefits
12.1 Physical
12.1.1 Neurological
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12.1.2 Cardiovascular
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12.1.3 Respiratory
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12.1.4 Reproductive
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12.1.5 Digestive
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12.2 Psychology
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12.3 Healing
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12.4 Qualities Associated
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