Nepheline Vs Andalusite
Origin
Canada
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
White, Reddish, gray, Brown, Brownish
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
Venus
Element of Planets
Not Available
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Energy
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Finger
Not Available
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Ring Metal
Not Available
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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
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.55-2.65
3.05-3.21
Fracture
Subconchoidal, Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
[1010] Poor
Good on {110}, poor on {100}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Greasy
Vitreous, Greasy
Pleochroism
Not Available
strongly trichroic
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.529-1.547
1.627-1.650
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.003-0.004
0.009-0.010
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 Andalusite Fracture
Fracture is an important parameter when you compare Nepheline and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Andalusite 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 Subconchoidal and Conchoidal. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Nepheline Vs Andalusite Luster
A primary knowledge about Nepheline vs Andalusite 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 Vitreous and Greasy luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.
