Nepheline Vs Phosgenite
Color
White, Reddish, gray, Brown, Brownish
White, gray, Brownish, Yellow, Greenish
For which Rashi?
Not Available
Not Available
Planet
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Element of Planets
Not Available
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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
Sectile
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
6.13
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Cleavage
[1010] Poor
Distinct on {001} and {110}, indistinct on {100}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Adamantine
Pleochroism
Not Available
Weakly pleochroic with O reddish and E greenish in thick sections.
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.529-1.547
2.117-2.145
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
tetragonal
Birefringence
0.003-0.004
0.027
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 Phosgenite Fracture
Fracture is an important parameter when you compare Nepheline and Phosgenite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Phosgenite 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. Phosgenite fracture is (e.g. graphite)., Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Nepheline Vs Phosgenite Luster
A primary knowledge about Nepheline vs Phosgenite 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. Phosgenite, on other hand, exhibits Adamantine luster.