Common Opal Vs Sylvite
Origin
Southern and central Africa
Mexico, Canada
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, White, Blue, Red, Reddish, Brownish
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
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
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Specific Gravity
1.98-2.50
1.993
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Brittle
Cleavage
Not Available
Perfect on [100], [010], [001]
Mohs Hardness
5.5-6.5
2.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Not Available
Luster
Not Available
Vitreous
Pleochroism
AbsentWalter Schumann
Visible in colored crystals
Dispersion
None
Not Available
Transparency
Translucent
Not Available
Refractive Index
1.37-1.52
1.4903
Optic Character
Not Available
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Crystal System
Not Available
Isometric
Birefringence
Not Available
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Clarity
Translucent
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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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Common Opal Vs Sylvite Fracture
Fracture is an important parameter when you compare Common Opal and Sylvite Physical Properties. It is necessary to understand the significance of these properties, before you compare Common Opal Vs Sylvite 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 Common Opal is Conchoidal, Conchoidal and Gemstones of the world (2001). Sylvite fracture is Brittle and Uneven.
Common Opal Vs Sylvite Luster
A primary knowledge about Common Opal vs Sylvite 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. Sylvite, on other hand, exhibits Vitreous luster.