Povondraite Vs Nephrite
Origin
Not Available
China, Canada
Color
Brownish, Black
Green, Green, Yellow, Brown, White, gray, Black
Streak
Brown
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
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Talisman
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.26
2.90-3.10
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Cleavage
None
Not Available
Mohs Hardness
Not Available
6-6.5
Chemical Composition
NaFe3+3Fe3+6(BO 3) 3Si 6O 18(O,OH) 4Anthony et al , Handbook of Mineralogy (2001)
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Resinous
Vitreous, Greasy
Pleochroism
Strong: yellow-brown
None
Dispersion
Not Available
Not Available
Transparency
Translucent
Translucent
Refractive Index
Not Available
1.600-1.627
Optic Character
Not Available
Not Available
Crystal System
Not Available
monoclinic
Birefringence
Not Available
0.027
Clarity
Translucent
Translucent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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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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Povondraite Vs Nephrite Fracture
Fracture is an important parameter when you compare Povondraite and Nephrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Povondraite Vs Nephrite 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 Povondraite is ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Nephrite fracture is Gemstones (2009), Granular, Granular, Splintery and Splintery.
Povondraite Vs Nephrite Luster
A primary knowledge about Povondraite vs Nephrite 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. Povondraite exhibits Resinous luster. Nephrite, on other hand, exhibits Greasy and Vitreous luster.