Black Opal Vs Phenakite
Origin
Australia
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Colorless, Yellow, pink, Red
Streak
Not Available
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Not Available
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
2.90-2.98
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
Not Available
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Not Available
Vitreous
Pleochroism
AbsentWalter Schumann
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.370-1.470
1.650-1.695
Optic Character
Not Available
Not Available
Crystal System
Not Available
Trigonal
Birefringence
Not Available
0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
Not Available
Digestive
Not Available
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Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Black Opal Vs Phenakite Fracture
Fracture is an important parameter when you compare Black Opal and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Phenakite 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 Black Opal is ConchoidalArthur Thomas and Gemstones (2009). Phenakite fracture is Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) and Brittle.
Black Opal Vs Phenakite Luster
A primary knowledge about Black Opal vs Phenakite 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. Phenakite, on other hand, exhibits Vitreous luster.