Neptunite Vs Vivianite
Origin
USA
Southern and central Africa
Color
Black, Red, Brown
Blue, Green, Colorless
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
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Durability
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Specific Gravity
3.19-3.23
2.64-2.70
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
(e.g. graphite).
Cleavage
{110} good
{010} Perfect
Mohs Hardness
5-6
Not Available
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Pearly
Pleochroism
x=yellow-orange
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Dispersion
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Transparency
Translucent
Transparent
Refractive Index
1.692-1.734
1.560-1.640
Optic Character
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Crystal System
monoclinic
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Birefringence
0.0294-0.0452
0.054-0.075
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 Vivianite Fracture
Fracture is an important parameter when you compare Neptunite and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Vivianite 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). Vivianite fracture is (e.g. graphite)..
Neptunite Vs Vivianite Luster
A primary knowledge about Neptunite vs Vivianite 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. Vivianite, on other hand, exhibits Pearly and Vitreous luster.