Sillimanite Vs Gyrolite
Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Italy, India, USA, Canada
Color
Blue, Green, Brownish, Greenish, Colorless, gray
White, Colorless, Green, Yellow, Brown, Brown, Colorless, Yellow, White, Green
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
3.20-3.26
2.48
Fracture
Splintery
Brittle, Uneven, Brittle, Uneven
Cleavage
{010} perfect
Perfect on {001}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
NaCa16Si23AlO60(OH)8•64(H2O)
Luster
Vitreous, Subadamantine, Silky
Vitreous, Pearly
Pleochroism
Colourless to pale brown to yellow
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Dispersion
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Transparency
Transparent, Translucent
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Refractive Index
1.653-1.685
1.535
Optic Character
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Crystal System
Orthorhombic
Triclinic
Birefringence
0.020-0.022
0.0140
Clarity
Transparent
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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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Sillimanite Vs Gyrolite Fracture
Fracture is an important parameter when you compare Sillimanite and Gyrolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite Vs Gyrolite 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 Sillimanite is Splintery. Gyrolite fracture is Brittle, Brittle, Uneven and Uneven.
Sillimanite Vs Gyrolite Luster
A primary knowledge about Sillimanite vs Gyrolite 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 exhibits Silky, Subadamantine and Vitreous luster. Gyrolite, on other hand, exhibits Pearly and Vitreous luster.