Black Opal Vs Cuprite
Origin
Australia
Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Red, Brown, Red, Red, Black
Streak
Not Available
Brownish, Red, Brownish, Red
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
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
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
5.85-6.15
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Not Available
Fair in four directions forming octahedrons
Mohs Hardness
6-6.5
3.5-4
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Not Available
Adamantine
Pleochroism
AbsentWalter Schumann
visible
Dispersion
None
Not Available
Transparency
Transparent, Translucent
TranslucentWalter Schumann
Refractive Index
1.370-1.470
2.849
Optic Character
Not Available
Not Available
Crystal System
Not Available
cubic
Birefringence
Not Available
Not Available
Clarity
Transparent
TranslucentWalter Schumann
Neurological
Not Available
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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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Black Opal Vs Cuprite Fracture
Fracture is an important parameter when you compare Black Opal and Cuprite Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Cuprite 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, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Cuprite fracture is Brittle, Conchoidal, Conchoidal, Gemstones (2009), Metallic and UnevenArthur Thomas.
Black Opal Vs Cuprite Luster
A primary knowledge about Black Opal vs Cuprite 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. Cuprite, on other hand, exhibits Adamantine luster.