Pleonast Vs Sillimanite
Origin
Not Available
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Blue, Green, Brownish, Greenish, Colorless, gray
Streak
Not Available
White
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
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Tough
Solubility
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Durability
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Specific Gravity
Not Available
3.20-3.26
Fracture
Not Available
Splintery
Cleavage
Not Available
{010} perfect
Mohs Hardness
Not Available
6-7.5
Chemical Composition
Not Available
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Not Available
Vitreous, Subadamantine, Silky
Pleochroism
Not Available
Colourless to pale brown to yellow
Dispersion
Not Available
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Transparency
Not Available
Transparent, Translucent
Refractive Index
Not Available
1.653-1.685
Optic Character
Not Available
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Crystal System
Not Available
Orthorhombic
Birefringence
Not Available
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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Pleonast Vs Sillimanite Fracture
Fracture is an important parameter when you compare Pleonast and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pleonast 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. Sillimanite fracture is Splintery.
Pleonast Vs Sillimanite Luster
A primary knowledge about Pleonast 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. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.