Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Southern and central Africa
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Green
Streak
White
Not Available
For which Rashi?
Libra
Not Available
Planet
Venus, Mars
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Element of Planets
Water
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Energy
Projective
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Deities
Venus
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Not to wear with
Not Available
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Powers
Love, Courage
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Planetary
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.85-3.35
2.51-2.63
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
Cleavage
Indistinct
Not Available
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Waxy, Silky, Resinous, Greasy
Pleochroism
typically moderate to strong
Not Available
Transparency
Transparent, Translucent, Transparent to opaque
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
Refractive Index
1.614-1.666
1.530-1.575
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Not Available
Birefringence
0.014-0.040
Not Available
Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Tourmaline Vs Williamsite Fracture
Fracture is an important parameter when you compare Tourmaline and Williamsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Williamsite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Tourmaline is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Williamsite fracture is Conchoidal, Conchoidal and Handbook of mineralogy (2001).
Tourmaline Vs Williamsite Luster
A primary knowledge about Tourmaline vs Williamsite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Tourmaline exhibits Vitreous luster. Williamsite, on other hand, exhibits Greasy, Resinous, Silky and Waxy luster.