Nepheline Vs Pyrophyllite
Color
White, Reddish, gray, Brown, Brownish
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
For which Rashi?
Not Available
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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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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.55-2.65
2.65-2.90
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Gemstones (2009), Flexible Flexible fragments.
Cleavage
[1010] Poor
{001} Perfect
Mohs Hardness
5-6
Not Available
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Pearly
Pleochroism
Not Available
NilArthur Thomas
Dispersion
Not Available
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Transparency
Transparent, Translucent
Translucent
Refractive Index
1.529-1.547
1.534-1.601
Optic Character
Not Available
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Crystal System
Hexagonal
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Birefringence
0.003-0.004
0.050
Clarity
Transparent
Translucent
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 Pyrophyllite Fracture
Fracture is an important parameter when you compare Nepheline and Pyrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Pyrophyllite 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. Pyrophyllite fracture is Flexible Flexible fragments. and Gemstones (2009).
Nepheline Vs Pyrophyllite Luster
A primary knowledge about Nepheline vs Pyrophyllite 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. Pyrophyllite, on other hand, exhibits Pearly luster.