Neptunite Vs Prase Opal
Origin
USA
Southern and central Africa
Color
Black, Red, Brown
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Brown, Red
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For which Rashi?
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Planet
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Element of Planets
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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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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)
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
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Pleochroism
x=yellow-orange
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Dispersion
Not Available
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Transparency
Translucent
Transparent, Translucent
Refractive Index
1.692-1.734
1.370-1.470
Optic Character
Not Available
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Crystal System
monoclinic
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Birefringence
0.0294-0.0452
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Clarity
Translucent
Transparent
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 Prase Opal Fracture
Fracture is an important parameter when you compare Neptunite and Prase Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Prase 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). Prase Opal fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Neptunite Vs Prase Opal Luster
A primary knowledge about Neptunite vs Prase 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.