1 Astrology
1.1 Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Switzerland
1.2 Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Colorless, Yellow, Blue, Reddish, Black, Reddish, Brown, Blue, gray, Black, Reddish, Brown, Blue, gray
1.3 Streak
1.4 For which Rashi?
1.5 Planet
Venus, Mars
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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
1.10 Not to wear with
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1.11 Powers
Love, Courage
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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
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2.3 Durability
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2.4 Specific Gravity
2.85-3.353.82-3.97
1
7.18
2.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
2.6 Cleavage
Indistinct
Perfect on [001] and [011]
2.7 Mohs Hardness
2.8 Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
3 Optical Properties
3.1 Luster
3.2 Pleochroism
typically moderate to strong
Weak
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to opaque
Transparent
3.5 Refractive Index
1.614-1.6662.488-2.562
1
3.25
3.6 Optic Character
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3.7 Crystal System
3.8 Birefringence
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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