Origin
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Brazil, USA, Switzerland, Kenya, Mozambique, Russia, Nepal, India, Burma
Color
Green, Blue, Yellow, Red, Brown, White, Colorless, Blue, Red, Green, Yellow, pink
Blue, Yellow, Colorless, White, gray, Green, Black
For which Rashi?
Libra
Aries, Libra, Taurus, Aries, Libra, Taurus, Aries, Libra, Taurus
Planet
Venus, Mars
Jupiter
Element of Planets
Water
Water
Finger
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Ring Metal
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Energy
Projective
Receptive
Deities
Venus
Endurance, Meditation, Love
Not to wear with
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Powers
Love, Courage
Love
Planetary
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Talisman
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Tenacity
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Brittle
Solubility
Not Available
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Durability
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Specific Gravity
2.85-3.35
3.53-3.65
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Splintery, Brittle, Metallic
Cleavage
Indistinct
[100] perfect [010] imperfect with 79° angle between
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
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Luster
Vitreous
Vitreous, Pearly
Pleochroism
typically moderate to strong
Trichroic
Transparency
Transparent, Translucent, Transparent to opaque
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Refractive Index
1.614-1.666
1.71-1.74
Optic Character
Not Available
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Crystal System
Trigonal
Triclinic
Birefringence
0.014-0.040
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Clarity
Transparent
Color grading system
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Tourmaline Vs Kyanite Fracture
Fracture is an important parameter when you compare Tourmaline and Kyanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tourmaline Vs Kyanite 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. Kyanite fracture is Brittle, Metallic and Splintery.
Tourmaline Vs Kyanite Luster
A primary knowledge about Tourmaline vs Kyanite 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. Kyanite, on other hand, exhibits Pearly and Vitreous luster.