Neptunite Vs Thulite
Color
Black, Red, Brown
Red
Streak
Brown, Red
White, 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
3.1
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{110} good
Perfect {010} imperfect {100}
Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca2Al3(SiO4)3(OH)
Pleochroism
x=yellow-orange
Present
Dispersion
Not Available
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Transparency
Translucent
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.692-1.734
1.695
Optic Character
Not Available
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Crystal System
monoclinic
Orthorhombic
Birefringence
0.0294-0.0452
0.006-0.018
Clarity
Translucent
OpaqueHerve Nicolas Lazzarelli
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 Thulite Fracture
Fracture is an important parameter when you compare Neptunite and Thulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Neptunite Vs Thulite 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). Thulite fracture is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Neptunite Vs Thulite Luster
A primary knowledge about Neptunite vs Thulite 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. Thulite, on other hand, exhibits Vitreous luster.