Nepheline Vs Polyhalite
Color
White, Reddish, gray, Brown, Brownish
Colorless, White, Red, gray, pink
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.78
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Brittle
Cleavage
[1010] Poor
Perfect on {10 1 }; parting on {010}
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Not Available
Luster
Vitreous, Greasy
Vitreous, Resinous
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent, Translucent
Not Available
Refractive Index
1.529-1.547
1.546-1.548
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Triclinic
Birefringence
0.003-0.004
0.021
Clarity
Transparent
Not Available
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Nepheline Vs Polyhalite Fracture
Fracture is an important parameter when you compare Nepheline and Polyhalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Nepheline Vs Polyhalite 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, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal and Brittle. Polyhalite fracture is Conchoidal and Brittle.
Nepheline Vs Polyhalite Luster
A primary knowledge about Nepheline vs Polyhalite 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. Polyhalite, on other hand, exhibits Vitreous and Resinous luster.