Coral Vs Onyx
Origin
Southern and central Africa, Orange, blue
Not Available
Streak
Not Available
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For which Rashi?
Pisces
Capricorn
Element of Planets
Water
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Energy
Receptive
Projective
Finger
Not Available
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Ring Metal
Not Available
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Not to wear with
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Powers
Healing, Protection
Protection
Planetary
Not Available
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Talisman
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Capricorn
Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.60-2.70
2.55-2.70
Fracture
Irregular, Gemstones of the world (2001)
Not Available
Cleavage
Not Available
Indiscernible
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
SiO2
Luster
Not Available
Vitreous
Pleochroism
AbsentWalter Schumann
Not Available
Dispersion
None
Not Available
Transparency
Translucent
Translucent, Opaque, Translucent to opaque
Refractive Index
1.486-1.658
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal
Birefringence
0.160-0.172
Not Available
Clarity
Translucent
OpaqueHerve Nicolas Lazzarelli
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
Not Available
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Healing
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Qualities Associated
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Coral Vs Onyx Fracture
Fracture is an important parameter when you compare Coral and Onyx Physical Properties. It is necessary to understand the significance of these properties, before you compare Coral Vs Onyx 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 Coral is Irregular and Gemstones of the world (2001).
Coral Vs Onyx Luster
A primary knowledge about Coral vs Onyx 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. Onyx, on other hand, exhibits Vitreous luster.