Narsarsukite Vs Sillimanite
Origin
Canada
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Yellow, Reddish, Brown, Brownish, Green, gray, Colorless
Blue, Green, Brownish, Greenish, Colorless, gray
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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Solubility
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Durability
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Specific Gravity
2.72-2.83
3.20-3.26
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Splintery
Cleavage
Good on {100} and {110}
{010} perfect
Chemical Composition
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Vitreous, Subadamantine, Silky
Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow
Colourless to pale brown to yellow
Dispersion
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Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.610-1.647
1.653-1.685
Optic Character
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Crystal System
tetragonal
Orthorhombic
Birefringence
0.021
0.020-0.022
Clarity
Transparent
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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Narsarsukite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Narsarsukite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Narsarsukite Vs Sillimanite 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 Narsarsukite is Brittle, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Sillimanite fracture is Splintery.
Narsarsukite Vs Sillimanite Luster
A primary knowledge about Narsarsukite vs Sillimanite 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. Narsarsukite exhibits Pearly and Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.