Shigaite Vs Sillimanite
Origin
Not Available
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Yellow, Brown, Black, orange
Blue, Green, Brownish, Greenish, Colorless, gray
Streak
Yellow, White
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Moderately flexible
Tough
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.32
3.20-3.26
Fracture
Flexible Flexible fragments.
Splintery
Cleavage
Perfect on {0001}
{010} perfect
Chemical Composition
Not Available
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
Distinct
Colourless to pale brown to yellow
Dispersion
Not Available
Not Available
Transparency
Not Available
Transparent, Translucent
Refractive Index
1.546
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
Not Available
0.020-0.022
Clarity
Not Available
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Shigaite Vs Sillimanite Fracture
Fracture is an important parameter when you compare Shigaite and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Shigaite 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 Shigaite is Flexible Flexible fragments.. Sillimanite fracture is Splintery.
Shigaite Vs Sillimanite Luster
A primary knowledge about Shigaite 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. Shigaite exhibits Vitreous luster. Sillimanite, on other hand, exhibits Silky, Subadamantine and Vitreous luster.