1 Astrology
1.1 Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Not Available, Southern and central Africa
1.2 Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Violet, Black
1.3 Streak
White
gray, White, gray, White
1.4 For which Rashi?
1.5 Planet
Venus, Mars
Not Available
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
1.10 Not to wear with
Not Available
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1.11 Powers
Love, Courage
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1.12 Birthstone
1.12.1 Planetary
Not Available
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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
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
2.5 Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Handbook of mineralogy (2001)
2.6 Cleavage
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.
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
typically moderate to strong
Strong: pale lavender dark blueAnthony et al
3.3 Dispersion
3.4 Transparency
Transparent, Translucent, Transparent to opaque
TranslucentAnthony et al, Translucent
3.5 Refractive Index
1.614-1.666Not Available
1
3.25
3.6 Optic Character
Not Available
Not Available
3.7 Crystal System
Trigonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
0.014-0.040Not Available
0
0.296
3.9 Clarity
Transparent
TranslucentAnthony et al
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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