Chalcedony Vs Sillimanite
Origin
Zimbabwe
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Color
Violet, White, gray, Blue, Brown, Black
Blue, Green, Brownish, Greenish, Colorless, gray
For which Rashi?
Cancer, Sagittarius, Cancer, Sagittarius, Cancer, Sagittarius
Not Available
Planet
Moon
Not Available
Element of Planets
Water
Not Available
Energy
Receptive
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
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Deities
Goddess Whope
Not Available
Not to wear with
Not Available
Not Available
Powers
Protection
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Tough
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.20-3.26
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Splintery
Cleavage
Absent
{010} perfect
Mohs Hardness
6.5-7
6-7.5
Chemical Composition
SiO2
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Subadamantine, Silky
Pleochroism
AbsentWalter Schumann
Colourless to pale brown to yellow
Dispersion
None
Not Available
Transparency
Translucent, Translucent to opaque
Transparent, Translucent
Refractive Index
1.530-1.543
1.653-1.685
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.003-0.009
0.020-0.022
Clarity
Translucent
Transparent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
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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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Chalcedony Vs Sillimanite Fracture
Fracture is an important parameter when you compare Chalcedony and Sillimanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Chalcedony 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 Chalcedony is Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal and UnevenWalter Schumann. Sillimanite fracture is Splintery.
Chalcedony Vs Sillimanite Luster
A primary knowledge about Chalcedony 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. Chalcedony exhibits Vitreous luster. Sillimanite, on other hand, exhibits Vitreous, Subadamantine and Silky luster.
