Nepheline Vs Phenakite
Origin
Canada
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
White, Reddish, gray, Brown, Brownish
Colorless, Yellow, pink, Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.55-2.65
2.90-2.98
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
[1010] Poor
Distinct on {11 2 0}, imperfect on {10 1 1}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
Not Available
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.529-1.547
1.650-1.695
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Trigonal
Birefringence
0.003-0.004
0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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 Phenakite Fracture
Fracture is an important parameter when you compare Nepheline and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Phenakite 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. Phenakite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Nepheline Vs Phenakite Luster
A primary knowledge about Nepheline vs Phenakite 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. Phenakite, on other hand, exhibits Vitreous luster.