Common Opal Vs Gibbsite
Origin
Southern and central Africa
Not Available
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Green, White, gray, Green, White, gray
Streak
Not Available
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
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Ring Metal
Not Available
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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
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
1.98-2.50
2.35
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Fibrous, Difficult, Fibrous
Cleavage
Not Available
{001} Perfect
Mohs Hardness
5.5-6.5
2.5-3
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Al(OH)3
Luster
Not Available
Vitreous, Pearly
Pleochroism
AbsentWalter Schumann
colorless.
Dispersion
None
Not Available
Transparency
Translucent
Not Available
Refractive Index
1.37-1.52
Not Available
Optic Character
Not Available
Not Available
Crystal System
Not Available
monoclinic
Birefringence
Not Available
Not Available
Clarity
Translucent
Not Available
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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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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Common Opal Vs Gibbsite Fracture
Fracture is an important parameter when you compare Common Opal and Gibbsite Physical Properties. It is necessary to understand the significance of these properties, before you compare Common Opal Vs Gibbsite 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). Gibbsite fracture is Difficult, Fibrous and Fibrous.
Common Opal Vs Gibbsite Luster
A primary knowledge about Common Opal vs Gibbsite 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. Gibbsite, on other hand, exhibits Pearly and Vitreous luster.