Nepheline Vs Bastnasite
Origin
Canada
Turkey, Russia, Canada
Color
White, Reddish, gray, Brown, Brownish
Reddish, Brown
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
4.95-5.0
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven
Cleavage
[1010] Poor
Imperfect to indistinct on {10 1 0}, parting on {0001}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous, Greasy, Pearly
Pleochroism
Not Available
Faint
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.529-1.547
1.717-1.722
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Hexagonal
Birefringence
0.003-0.004
0.100
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 Bastnasite Fracture
Fracture is an important parameter when you compare Nepheline and Bastnasite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Bastnasite 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. Bastnasite fracture is Uneven.
Nepheline Vs Bastnasite Luster
A primary knowledge about Nepheline vs Bastnasite 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. Bastnasite, on other hand, exhibits Greasy, Pearly and Vitreous luster.