Cavansite Vs Covellite
Color
Blue, Greenish, Greenish, Blue
Blue, Blue, Black
Streak
Blue, White
Grey, Black, gray
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
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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
Brittle
Flexible
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.25-2.33
4.6-4.76
Fracture
Brittle, Metallic, Brittle, Metallic
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Good on {010}
Perfect on {0001}
Mohs Hardness
3-4
Not Available
Chemical Composition
Ca(VO)Si4O10•4(H2O)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Resinous
Pleochroism
Visible: X=Z= colorless Y= blue
Marked
Dispersion
Not Available
Not Available
Transparency
Not Available
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.542
1.45-2.62
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Hexagonal
Birefringence
0.009
Not Available
Clarity
Not Available
OpaqueAnthony et al
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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Cavansite Vs Covellite Fracture
Fracture is an important parameter when you compare Cavansite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cavansite 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. Fracture observed in Cavansite is Brittle, Brittle, Metallic and Metallic. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Cavansite Vs Covellite Luster
A primary knowledge about Cavansite 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. Cavansite exhibits Pearly and Vitreous luster. Covellite, on other hand, exhibits Resinous luster.