Neptunite Vs Fayalite
Origin
USA
Southern and central Africa
Color
Black, Red, Brown
Yellow, Brown, Black
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
Brittle
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Solubility
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Durability
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Specific Gravity
3.19-3.23
4.392
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
{110} good
{010} moderate, {100} imperfect
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
x=yellow-orange
Faint
Dispersion
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Transparency
Translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
Refractive Index
1.692-1.734
1.827-1.879
Optic Character
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Crystal System
monoclinic
Orthorhombic
Birefringence
0.0294-0.0452
0.042-0.051
Clarity
Translucent
TransparentAnthony et al
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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Neptunite Vs Fayalite Fracture
Fracture is an important parameter when you compare Neptunite and Fayalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Fayalite 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 Neptunite is Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Brittle. Fayalite fracture is Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Brittle.
Neptunite Vs Fayalite Luster
A primary knowledge about Neptunite vs Fayalite 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. Neptunite exhibits Vitreous luster. Fayalite, on other hand, exhibits Vitreous and Resinous luster.