Nepheline Vs Pollucite
Origin
Canada
Afghanistan, Southern and central Africa
Color
White, Reddish, gray, Brown, Brownish
Grey, White, Colorless, gray, Pale pink, Blue
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
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
Not Available
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Tenacity
Not Available
Brittle
Solubility
Not Available
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.86-2.94
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
[1010] Poor
None observed
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Vitreous, Greasy
Pleochroism
Not Available
Not Available
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.529-1.547
1.517-1.525
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
0.003-0.004
Not Available
Clarity
Transparent
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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Nepheline Vs Pollucite Fracture
Fracture is an important parameter when you compare Nepheline and Pollucite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Pollucite 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. Pollucite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Nepheline Vs Pollucite Luster
A primary knowledge about Nepheline vs Pollucite 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. Pollucite, on other hand, exhibits Greasy and Vitreous luster.