Powellite Vs Neptunite
Color
Yellow, Greenish, Blue, Brown, Green, gray
Black, Red, Brown
For which Rashi?
Not Available
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Planet
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Element of Planets
Not Available
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Finger
Not Available
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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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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
4.23
3.19-3.23
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
{111} Distinct
{110} good
Chemical Composition
CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Greasy, Subadamantine
Vitreous
Pleochroism
In deeply colored specimens: blue greenAnthony et al
x=yellow-orange
Dispersion
Not Available
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Transparency
Transparent
Translucent
Refractive Index
1.974-1.984
1.692-1.734
Optic Character
Not Available
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Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.0294-0.0452
Clarity
Transparent
Translucent
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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Powellite Vs Neptunite Fracture
Fracture is an important parameter when you compare Powellite and Neptunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Neptunite 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al. Neptunite fracture is Brittle, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Powellite Vs Neptunite Luster
A primary knowledge about Powellite vs Neptunite 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. Powellite exhibits Greasy and Subadamantine luster. Neptunite, on other hand, exhibits Vitreous luster.