Black Opal Vs Erythrite
Origin
Australia
Czech, Mexico, Australia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Red, Colorless, Violet, Red, pink
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
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Sectile
Solubility
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Durability
Not Available
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Specific Gravity
1.97-2.22
3.06
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Cleavage
Not Available
Perfect on {010}; poor on {100} and { 1 02}.
Mohs Hardness
6-6.5
Not Available
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Co3(AsO4)2•8(H2O)
Luster
Not Available
Subadamantine, Pearly
Pleochroism
AbsentWalter Schumann
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red
Dispersion
None
Not Available
Transparency
Transparent, Translucent
Not Available
Refractive Index
1.370-1.470
1.626-1.629
Optic Character
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Crystal System
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monoclinic
Birefringence
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Clarity
Transparent
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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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Black Opal Vs Erythrite Fracture
Fracture is an important parameter when you compare Black Opal and Erythrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Black Opal Vs Erythrite 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). Erythrite fracture is (e.g. graphite). and Sectile Curved shavings or scrapings produced by a knife blade.
Black Opal Vs Erythrite Luster
A primary knowledge about Black Opal vs Erythrite 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. Erythrite, on other hand, exhibits Pearly and Subadamantine luster.