Nepheline Vs Povondraite
Origin
Canada
Not Available
Color
White, Reddish, gray, Brown, Brownish
Brownish, Black
For which Rashi?
Not Available
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Planet
Not Available
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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
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Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
3.26
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Cleavage
[1010] Poor
None
Mohs Hardness
5-6
Not Available
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Luster
Vitreous, Greasy
Resinous
Pleochroism
Not Available
Strong: yellow-brown
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.529-1.547
Not Available
Optic Character
Not Available
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Crystal System
Hexagonal
Not Available
Birefringence
0.003-0.004
Not Available
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 Povondraite Fracture
Fracture is an important parameter when you compare Nepheline and Povondraite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Povondraite 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. Povondraite fracture is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Nepheline Vs Povondraite Luster
A primary knowledge about Nepheline vs Povondraite 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. Povondraite, on other hand, exhibits Resinous luster.