Periclase Vs Nepheline
Origin
Austria, Spain, Russia, Canada, Australia
Canada
Color
Colorless, Brownish, Yellow, Green, gray, White
White, Reddish, gray, Brown, Brownish
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
Brittle
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.7-3.9
2.55-2.65
Fracture
Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}
[1010] Poor
Chemical Composition
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Not Available
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Dispersion
Not Available
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Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Transparent, Translucent
Refractive Index
1.735-1.738
1.529-1.547
Optic Character
Not Available
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Crystal System
Isometric
Hexagonal
Birefringence
Not Available
0.003-0.004
Clarity
TransparentWalter Schumann
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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Periclase Vs Nepheline Fracture
Fracture is an important parameter when you compare Periclase and Nepheline Physical Properties. It is necessary to understand the significance of these properties, before you compare Periclase Vs Nepheline 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 Periclase is Brittle and Conchoidal. Nepheline fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Periclase Vs Nepheline Luster
A primary knowledge about Periclase vs Nepheline 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. Periclase exhibits Vitreous luster. Nepheline, on other hand, exhibits Greasy and Vitreous luster.