Pargasite Vs Covellite
Origin
Southern and central Africa, Vietnam
Mexico
Color
Green, Black, Brown
Blue, Blue, Black
Streak
White
Grey, Black, gray
For which Rashi?
Not Available
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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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Flexible
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.04-3.26
4.6-4.76
Fracture
Splintery, Brittle, Uneven
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
{110} perfect
Perfect on {0001}
Mohs Hardness
5-6
Not Available
Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Pleochroism
Not Available
Marked
Dispersion
Not Available
Not Available
Transparency
Transparent
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Refractive Index
1.613-1.663
1.45-2.62
Optic Character
Not Available
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Crystal System
monoclinic
Hexagonal
Birefringence
0.020
Not Available
Clarity
Transparent
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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Pargasite Vs Covellite Fracture
Fracture is an important parameter when you compare Pargasite and Covellite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pargasite 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 Pargasite is Brittle, Splintery and Uneven. Covellite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Pargasite Vs Covellite Luster
A primary knowledge about Pargasite 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. Pargasite exhibits Vitreous luster. Covellite, on other hand, exhibits Resinous luster.