Riebeckite Vs Neptunite
Color
Black, Blue, Yellow, Green
Black, Red, Brown
Streak
Grey, Greenish, Brown
Brown, Red
For which Rashi?
Not Available
Not Available
Planet
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Element of Planets
Not Available
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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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Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.44
3.19-3.23
Fracture
Uneven, Splintery, Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
{110} good
Mohs Hardness
5.0-6.0
5-6
Chemical Composition
Not Available
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Silky
Vitreous
Pleochroism
X = blue
x=yellow-orange
Dispersion
Not Available
Not Available
Transparency
Not Available
Translucent
Refractive Index
1.680-1.698
1.692-1.734
Optic Character
Not Available
Not Available
Crystal System
monoclinic
monoclinic
Birefringence
0.005-0.008
0.0294-0.0452
Clarity
Not Available
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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Riebeckite Vs Neptunite Fracture
Fracture is an important parameter when you compare Riebeckite and Neptunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Riebeckite 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 Riebeckite is Brittle, Splintery and Uneven. Neptunite fracture is Brittle, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Riebeckite Vs Neptunite Luster
A primary knowledge about Riebeckite 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. Riebeckite exhibits Silky and Vitreous luster. Neptunite, on other hand, exhibits Vitreous luster.