Neptunite Vs Boulder Opal
Color
Black, Red, Brown
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Brown, Red
Not Available
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
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Talisman
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Tenacity
Brittle
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.19-3.23
1.98-2.25
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{110} good
Not Available
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO 2 + H 2OUlrich Henn and Claudio C.
Luster
Vitreous
Not Available
Pleochroism
x=yellow-orange
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.692-1.734
1.370-1.470
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Not Available
Birefringence
0.0294-0.0452
Not Available
Clarity
Translucent
Transparent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
Not Available
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Psychology
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Healing
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Qualities Associated
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Neptunite Vs Boulder Opal Fracture
Fracture is an important parameter when you compare Neptunite and Boulder Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Boulder Opal 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 Brittle, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001). Boulder Opal fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009), Gemstones (2009) and Gemstones (2009).
Neptunite Vs Boulder Opal Luster
A primary knowledge about Neptunite vs Boulder Opal 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.