Covellite Vs Periclase
Origin
Mexico
Austria, Spain, Russia, Canada, Australia
Color
Blue, Blue, Black
Colorless, Brownish, Yellow, Green, gray, White
Streak
Grey, Black, gray
White
For which Rashi?
Not Available
Not Available
Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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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
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Tenacity
Flexible
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
3.7-3.9
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Conchoidal, Brittle
Cleavage
Perfect on {0001}
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Mohs Hardness
Not Available
5.5-6
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Marked
Not Available
Dispersion
Not Available
Not Available
Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Refractive Index
1.45-2.62
1.735-1.738
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
Not Available
Not Available
Clarity
OpaqueAnthony et al
TransparentWalter Schumann
Neurological
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Cardiovascular
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Respiratory
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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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Covellite Vs Periclase Fracture
Fracture is an important parameter when you compare Covellite and Periclase Physical Properties. It is necessary to understand the significance of these properties, before you compare Covellite Vs Periclase 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 Covellite is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas. Periclase fracture is Brittle and Conchoidal.
Covellite Vs Periclase Luster
A primary knowledge about Covellite vs Periclase 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. Covellite exhibits Resinous luster. Periclase, on other hand, exhibits Vitreous luster.