Neptunite Vs Allanite
Origin
USA
Not Available, Southern and central Africa
Color
Black, Red, Brown
Brown, Black
Streak
Brown, Red
Not Available
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.19-3.23
3.40-4.20
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Not Available
Cleavage
{110} good
Not Available
Mohs Hardness
5-6
Not Available
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Not Available
Luster
Vitreous
Not Available
Pleochroism
x=yellow-orange
Not Available
Dispersion
Not Available
Not Available
Transparency
Translucent
Not Available
Refractive Index
1.692-1.734
1
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Not Available
Birefringence
0.0294-0.0452
0.013-0.036
Clarity
Translucent
Not Available
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Neptunite Vs Allanite Fracture
Fracture is an important parameter when you compare Neptunite and Allanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Allanite 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).
Neptunite Vs Allanite Luster
A primary knowledge about Neptunite vs Allanite 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.