Nepheline Vs Bytownite
Origin
Canada
Canada, Southern and central Africa, Australia
Color
White, Reddish, gray, Brown, Brownish
Colorless, White, Colorless, gray, White
For which Rashi?
Not Available
Not Available
Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.55-2.65
2.72-2.75
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
[1010] Poor
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
Not Available
colorless.
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.529-1.547
1.561-1.583
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Triclinic
Birefringence
0.003-0.004
0.010-0.011
Clarity
Transparent
Transparent
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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Nepheline Vs Bytownite Fracture
Fracture is an important parameter when you compare Nepheline and Bytownite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Bytownite 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 Nepheline is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal. Bytownite fracture is Gems, Sixth Edition (2006), Uneven and Uneven.
Nepheline Vs Bytownite Luster
A primary knowledge about Nepheline vs Bytownite 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. Nepheline exhibits Greasy and Vitreous luster. Bytownite, on other hand, exhibits Pearly and Vitreous luster.