Cavansite Vs Sillimanite
Origin
India
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Blue, Greenish, Greenish, Blue
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
2.25-2.33
3.20-3.26
Fracture
Brittle, Metallic, Brittle, Metallic
Splintery
Cleavage
Good on {010}
{010} perfect
Chemical Composition
Ca(VO)Si4O10•4(H2O)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Pearly
Vitreous, Subadamantine, Silky
Pleochroism
Visible: X=Z= colorless Y= blue
Colourless to pale brown to yellow
Dispersion
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Transparency
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Transparent, Translucent
Refractive Index
1.542
1.653-1.685
Optic Character
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Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009
0.020-0.022
Clarity
Not Available
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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Cavansite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Cavansite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cavansite 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 Cavansite is Brittle, Brittle, Metallic and Metallic. Sillimanite fracture is Splintery.
Cavansite Vs Sillimanite Luster
A primary knowledge about Cavansite 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. Cavansite exhibits Pearly and Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.