Chrome-Chalcedony Vs Covellite
Origin
Southern and central Africa
Mexico
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Blue, Blue, Black
Streak
Not Available
Grey, Black, gray
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
Not Available
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Deities
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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
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
4.6-4.76
Fracture
Not Available
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Not Available
Perfect on {0001}
Mohs Hardness
6.5-7
Not Available
Chemical Composition
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
Not Available
Marked
Dispersion
Not Available
Not Available
Transparency
Translucent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.530-1.543
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
Not Available
Hexagonal
Birefringence
0.003-0.009
Not Available
Clarity
Translucent
OpaqueAnthony et al
Neurological
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Cardiovascular
Not Available
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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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Chrome-Chalcedony Vs Covellite Fracture
Fracture is an important parameter when you compare Chrome-Chalcedony and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Chrome-Chalcedony Vs Covellite 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. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Chrome-Chalcedony Vs Covellite Luster
A primary knowledge about Chrome-Chalcedony vs Covellite 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. Chrome-Chalcedony exhibits Waxy luster. Covellite, on other hand, exhibits Resinous luster.