Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
USA, Southern and central Africa, green, blue, China, India, USA, Italy, green, blue, China, India, USA, Italy
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
White, Yellow
Streak
White
Not Available
For which Rashi?
Libra
Gemini
Planet
Venus, Mars
Saturn
Element of Planets
Water
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
Projective
Projective
Deities
Venus
Not Available
Not to wear with
Not Available
Not Available
Powers
Love, Courage
Healing
Planetary
Not Available
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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
Not Available
Specific Gravity
2.85-3.35
2.44-2.62
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
Indistinct
Not Available
Mohs Hardness
7-7.5
2.5-5.5
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous, Greasy, Silky
Pleochroism
typically moderate to strong
AbsentWalter Schumann
Transparency
Transparent, Translucent, Transparent to opaque
Translucent
Refractive Index
1.614-1.666
1.560-1.571
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.014-0.040
0.008-0.014
Clarity
Transparent
Translucent
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
Not Available
Qualities Associated
Not Available
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Tourmaline Vs Serpentine Fracture
Fracture is an important parameter when you compare Tourmaline and Serpentine Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Serpentine 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. Serpentine fracture is Gemstones of the world (2001) More from other references, Uneven and Uneven.
Tourmaline Vs Serpentine Luster
A primary knowledge about Tourmaline vs Serpentine 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. Serpentine, on other hand, exhibits Greasy, Silky and Vitreous luster.